<>
clear
input str9 var1
"2011017:1"
"2011018:1"
"2011018:2"
"2011026:1"
"2011040:1"
"2011041:1"
end
count if strpos(var1,":2") > 0
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
An Introduction to Stata Programming
| http://www.stata-press.com/books/isp.html
An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
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