Can I substitute count of the number of observations with the count of unique "conm" which stands for company names?

Hello everyone, I have the following dataset:

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input long datadate str58 conm str5 ffinds float(tobinQ DEratio IKratio) double RET_sum
14609 "1-800 CONTACTS INC"     "Shops"  8.508272 .0016041923   .8433363                    .
14975 "1-800 CONTACTS INC"     "Shops" 14.222518    .2337988   .3587759                    .
15340 "1-800 CONTACTS INC"     "Shops" 4.3282104    .5273439   .4119069                    .
15705 "1-800 CONTACTS INC"     "Shops"  6.347464   18.126167   .1174001                    .
16070 "1-800 CONTACTS INC"     "Shops"  4.802786   14.811702  .15626185                    .
16436 "1-800 CONTACTS INC"     "Shops"  4.234757     22.7007  .13556117                    .
16801 "1-800 CONTACTS INC"     "Shops" 2.8556266   30.298553  .28288168                    .
17166 "1-800 CONTACTS INC"     "Shops"  3.551534   34.480396   .5602976                    .
15156 "1-800-FLOWERS.COM"      "Shops"  6.739181   12.543878          .                    .
15521 "1-800-FLOWERS.COM"      "Shops" 3.5733285   12.269454   .3096153                    .
15886 "1-800-FLOWERS.COM"      "Shops"  5.024516    9.146034   .2579355                    .
16252 "1-800-FLOWERS.COM"      "Shops" 3.8399935    6.078213  .24185115                    .
16617 "1-800-FLOWERS.COM"      "Shops"  3.405308    3.360937  .20953363                    .
16982 "1-800-FLOWERS.COM"      "Shops"  2.715548    78.11663   .2232304                    .
17347 "1-800-FLOWERS.COM"      "Shops"  3.143088     68.0504   .3275363                    .
17713 "1-800-FLOWERS.COM"      "Shops" 2.2914743    55.30567          .                    .
18078 "1-800-FLOWERS.COM"      "Shops" 2.0553632    70.68497          .                    .
18443 "1-800-FLOWERS.COM"      "Shops" 2.1889625     45.8186          .                    .
18808 "1-800-FLOWERS.COM"      "Shops" 2.1010947    29.36639          .                    .
19174 "1-800-FLOWERS.COM"      "Shops"  2.505273    13.59741   .3496476                    .
19539 "1-800-FLOWERS.COM"      "Shops" 3.0585864           0          .                    .
19904 "1-800-FLOWERS.COM"      "Shops" 3.6604996  .001872281   .3332502                    .
20269 "1-800-FLOWERS.COM"      "Shops"  2.443491   117.63277   .1351264                    .
20635 "1-800-FLOWERS.COM"      "Shops"  2.927234    98.04977  .19007714                    .
21000 "1-800-FLOWERS.COM"      "Shops"  2.833774   101.40247  .21029738                    .
21365 "1-800-FLOWERS.COM"      "Shops"  2.982154    92.29896          .                    .
21730 "1-800-FLOWERS.COM"      "Shops"  3.153008    91.98759          .                    .
 9070 "1MAGE SOFTWARE INC"     "BusEq"  2.251663    .1840396  .25270757                    .
 9435 "1MAGE SOFTWARE INC"     "BusEq" 2.3038278   .21721105   .7819383                    .
 9800 "1MAGE SOFTWARE INC"     "BusEq"  1.848045   1.2883546  .08600337                    .
10165 "1MAGE SOFTWARE INC"     "BusEq" 1.5916607   1.3494127   .8574514                    .
10531 "1MAGE SOFTWARE INC"     "BusEq" 1.6125416   .59322387   .1642857                    .
10957 "1MAGE SOFTWARE INC"     "BusEq"  1.522075    .6392407          .                    .
20453 "22ND CENTURY GROUP INC" "Hlth"   7.049687   .33434495   -.163928   .15926671214401722
20819 "22ND CENTURY GROUP INC" "Hlth"   5.456799  .012657188 .015195072                    .
21184 "22ND CENTURY GROUP INC" "Hlth"   6.284982           0  .05940893                    .
21549 "22ND CENTURY GROUP INC" "Hlth"   5.937014    .8576661   .3547991   .02921333909034729
21914 "22ND CENTURY GROUP INC" "Hlth"  4.1072836    .6869087  .12063407  -.47212739288806915
14609 "24/7 REAL MEDIA INC"    "BusEq" 4.2859573   .01312318  .08389352                    .
14975 "24/7 REAL MEDIA INC"    "BusEq" 1.8573456   .15447597   .4089422                    .
15340 "24/7 REAL MEDIA INC"    "BusEq" 1.4906782   4.6158705   4.481135                    .
15705 "24/7 REAL MEDIA INC"    "BusEq" 1.3313392    7.948827  .56318957                    .
16070 "24/7 REAL MEDIA INC"    "BusEq" 4.4282284    13.33908          .                    .
16436 "24/7 REAL MEDIA INC"    "BusEq"  3.211396    6.573282          .                    .
16801 "24/7 REAL MEDIA INC"    "BusEq"  3.927317   .20012684          .                    .
17166 "24/7 REAL MEDIA INC"    "BusEq"  4.136897    7.848601   .7737859                    .
20453 "2U INC"                 "BusEq"   7.39108           0   .4678888                    .
20819 "2U INC"                 "BusEq"  7.617836           0  .26263145                    .
21184 "2U INC"                 "BusEq"  8.851855         3.5  .15590663                    .
21549 "2U INC"                 "BusEq"  5.451736         3.5   .5223044                    .
21914 "2U INC"                 "BusEq"  2.888563    313.6051  .11872056                    .
 9282 "3COM CORP"              "BusEq"  4.935338    .9129182   .4703667    .4407764673233032
 9647 "3COM CORP"              "BusEq"  5.595801     .726997   .6072411                    .
10012 "3COM CORP"              "BusEq" 4.6675944    .1754407   .2220039                    .
10378 "3COM CORP"              "BusEq"  4.624487   2.2324364  .23489933 -.018478821963071823
10743 "3COM CORP"              "BusEq"  4.368012    3.362248   .4820495    .4984411816112697
11108 "3COM CORP"              "BusEq"  3.156491     .832413  .48975965  -.47400884702801704
11473 "3COM CORP"              "BusEq"  2.509657    .3079429  .51198757  -.23798490595072508
11839 "3COM CORP"              "BusEq"  2.733446    1.484548    .498294                    .
12204 "3COM CORP"              "BusEq"         .    .6139534  .38935345                    .
12569 "3COM CORP"              "BusEq"         .   1.0597168   .3322786    .6975756268948317
12934 "3COM CORP"              "BusEq"  5.804919   111.09442   .3371167   1.0902648130431771
13300 "3COM CORP"              "BusEq"  6.812934     115.492   .3090792   .48784300684928894
13665 "3COM CORP"              "BusEq"  7.460834     115.391   .4769643                    .
14030 "3COM CORP"              "BusEq"   4.77258    35.88228   .2885527                    .
14395 "3COM CORP"              "BusEq"  5.288676    30.40956   .5516904                    .
14761 "3COM CORP"              "BusEq"  4.192189   14.743576   .3299505    .9779941635206342
15126 "3COM CORP"              "BusEq"  2.573204    2.385131   .2986703   .04079020023345947
15491 "3COM CORP"              "BusEq"  2.674997    68.45597  -.1003159   .16816721856594086
15856 "3COM CORP"              "BusEq"  2.659018  .000201327  1.3489288                    .
16222 "3COM CORP"              "BusEq"  3.585532           0  -.7688125                    .
16587 "3COM CORP"              "BusEq"         .           0 -1.7090818   -.5052792765200138
16952 "3COM CORP"              "BusEq"         .           0  -.3386751    .2843475865665823
17317 "3COM CORP"              "BusEq"         .    336.0816  .22762227   .07981697097420692
17683 "3COM CORP"              "BusEq"         .   253.04823  -.1518761                    .
18048 "3COM CORP"              "BusEq"         .   152.04315   .4197991                    .
12783 "3D SYSTEMS CORP"        "Manuf"  4.698982           0   .2170798                    .
13148 "3D SYSTEMS CORP"        "Manuf"  5.056679           0  .27879152                    .
13514 "3D SYSTEMS CORP"        "Manuf"  3.314967    4.801455   .3095765                    .
13879 "3D SYSTEMS CORP"        "Manuf"  2.481076   4.7064705   .4745502                    .
14244 "3D SYSTEMS CORP"        "Manuf"  2.597999   4.6065025    .365897                    .
14609 "3D SYSTEMS CORP"        "Manuf"   2.72945   4.4968452  .22086796                    .
14975 "3D SYSTEMS CORP"        "Manuf"  2.999115   4.3766713   .3407656                    .
15340 "3D SYSTEMS CORP"        "Manuf"  2.632842   25.756485   .1083184                    .
15705 "3D SYSTEMS CORP"        "Manuf" 2.2033381   14.306316  .21624616                    .
16070 "3D SYSTEMS CORP"        "Manuf"  2.270365    36.63218   .2276735                    .
16436 "3D SYSTEMS CORP"        "Manuf"   3.58719    26.45164  .08642105                    .
16801 "3D SYSTEMS CORP"        "Manuf" 3.2788224    26.15136   .0641953                    .
17166 "3D SYSTEMS CORP"        "Manuf" 3.2492914   24.368994  .07894626                    .
17531 "3D SYSTEMS CORP"        "Manuf"    3.6713    8.696465    .461863                    .
17897 "3D SYSTEMS CORP"        "Manuf"  2.828813   8.4990835  .03842639                    .
18262 "3D SYSTEMS CORP"        "Manuf" 3.4015944    8.256035          .                    .
18627 "3D SYSTEMS CORP"        "Manuf"         .    8.056683          .                    .
18992 "3D SYSTEMS CORP"        "Manuf"         .   138.71664          .                    .
19358 "3D SYSTEMS CORP"        "Manuf"  6.428952    87.97437          .                    .
19723 "3D SYSTEMS CORP"        "Manuf" 10.604547   18.693201  .07131481                    .
20088 "3D SYSTEMS CORP"        "Manuf"  4.269652    8.905529  .06216339                    .
20453 "3D SYSTEMS CORP"        "Manuf"  2.846095    8.187806   .2642828                    .
20819 "3D SYSTEMS CORP"        "Manuf"   3.54067    7.587908  .28006452                    .
21184 "3D SYSTEMS CORP"        "Manuf" 2.8062286    7.079041   .1662924                    .
end
format %d datadate

Then I run the tabstat command:

Code:
tabstat tobinQ DEratio IKratio RET_sum, statistics( count mean median ) by(ffinds)
To obtain:

Code:
ffinds |    tobinQ   DEratio   IKratio   RET_sum
-------+----------------------------------------
 BusEq |        37        44        40        14
       |  3.957182  36.64331  .3934658  .2521618
       |  3.927317   1.41698  .3346976  .2262574
-------+----------------------------------------
  Hlth |         5         5         5         3
       |  5.767153  .3783154  .0772218 -.0945491
       |  5.937014   .334345  .0594089  .0292133
-------+----------------------------------------
 Manuf |        22        24        20         0
       |  3.704453  20.30449  .2166868         .
       |  3.264057  8.377559  .2189739         .
-------+----------------------------------------
 Shops |        27        27        19         0
       |  4.055298  38.03305  .2976064         .
       |  3.153008   22.7007  .2579355         .
-------+----------------------------------------
 Total |        91       100        84        17
       |  4.024643  31.28397   .310869  .1909775
       |  3.405308  7.333474  .2715372  .1592667
------------------------------------------------
So in this table instead of having the number of observations for the first row in each category I would like to have the number of unique companies (conm).
Is this possible? And if not, what would be your advise to obtain the similar result?