do nlsw_data_setup
svyset [pw=wt]
tabout occupation south collgrad ///
using table21.xls, replace  ///
c(mean wage ci) ///
f(2 2) clab(_ (90%_CI)) sum svy ///
level(90) npos(lab) layout(row) ///
h3(Average_wage) h3c(3) ///
title(Table 21: Twoway summary table ///
with row layout)  fn(Source: nslw88.dta) open