Frequencies for state variable in nmimpair dataset :

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         73        1.19        1.19
          2 |          7        0.11        1.30
          4 |        199        3.24        4.54
          5 |         62        1.01        5.55
          6 |        959       15.62       21.17
          8 |         77        1.25       22.43
          9 |         44        0.72       23.14
         10 |         31        0.50       23.65
         11 |         10        0.16       23.81
         12 |        681       11.09       34.90
         13 |        216        3.52       38.42
         15 |         27        0.44       38.86
         16 |         18        0.29       39.15
         17 |        178        2.90       42.05
         18 |        105        1.71       43.76
         19 |         23        0.37       44.14
         20 |         36        0.59       44.72
         21 |         62        1.01       45.73
         22 |        121        1.97       47.70
         23 |         20        0.33       48.03
         24 |        126        2.05       50.08
         25 |         80        1.30       51.38
         26 |        189        3.08       54.46
         27 |         45        0.73       55.20
         28 |         59        0.96       56.16
         29 |         83        1.35       57.51
         30 |         34        0.55       58.06
         31 |         16        0.26       58.32
         32 |         85        1.38       59.71
         33 |         20        0.33       60.03
         34 |        154        2.51       62.54
         35 |         60        0.98       63.52
         36 |        435        7.08       70.60
         37 |        216        3.52       74.12
         38 |          3        0.05       74.17
         39 |        118        1.92       76.09
         40 |         84        1.37       77.46
         41 |         64        1.04       78.50
         42 |        184        3.00       81.50
         44 |         18        0.29       81.79
         45 |        120        1.95       83.75
         46 |         11        0.18       83.93
         47 |         99        1.61       85.54
         48 |        580        9.45       94.98
         49 |         48        0.78       95.77
         50 |          5        0.08       95.85
         51 |         96        1.56       97.41
         53 |         67        1.09       98.50
         54 |         32        0.52       99.02
         55 |         56        0.91       99.93
         56 |          4        0.07      100.00
------------+-----------------------------------
      Total |      6,140      100.00

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