I find a code for generating 97th percentile for each year. However, I am not sure why the percentile_97 need to be replaced by r(c_1). Does it mean that the count of analyst is the % within 97th percentile?
Thank you if you can give me any explanation of the code.

*generating 97th percentile for each year*
gen percentile_97=.
su fiscal_year
scalar a= r(min)
scalar b= r(max)
forvalues i= `=scalar(a)'/`=scalar(b)' {
centile max_analy_count if fiscal_year==`i', cent(97)
replace percentile_97=r(c_1) if fiscal_year==`i'
}
sort ticker analys forecasted_year forecasted_month