Frequencies for first 10,000 rows of state variable in drimpair dataset :

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,070       10.70       10.70
          2 |        101        1.01       11.71
          4 |      1,048       10.48       22.19
          5 |        676        6.76       28.95
          6 |      4,308       43.08       72.03
          8 |        691        6.91       78.94
          9 |        342        3.42       82.36
         10 |        167        1.67       84.03
         11 |         26        0.26       84.29
         12 |      1,571       15.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016