Frequencies for first 10,000 rows of int_pnsplan variable in mcbsatc2013 datase

      Proxy |
  necessary |
     due to |
   language |
    problem |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        103        1.03        1.03
          2 |        996        9.96       10.99
          . |      8,901       89.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016