I want to create a table like the one in the attached photo, showing the average values of my variables.

I have 1 .dta file with the corporate competition sample and 1 with the financial competition sample. I have all the variables shown.

My questions:
1. Is this a built-in STATA table, or do I have to construct it myself?
2. Do I have to append the two samples and separate them by a dummy or something, or do I do one table at the time and then combine them?
3. The values in parantheses are the values of a subsample (winning deals). How do I insert this?