Frequencies for state variable in nmimpair dataset :

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        120        1.88        1.88
          2 |         17        0.27        2.15
          4 |        191        3.00        5.15
          5 |         64        1.00        6.15
          6 |        978       15.35       21.50
          8 |         79        1.24       22.74
          9 |         63        0.99       23.73
         10 |         31        0.49       24.21
         11 |         10        0.16       24.37
         12 |        819       12.85       37.22
         13 |        192        3.01       40.23
         15 |         34        0.53       40.77
         16 |         17        0.27       41.03
         17 |        164        2.57       43.61
         18 |        106        1.66       45.27
         19 |         25        0.39       45.66
         20 |         31        0.49       46.15
         21 |         72        1.13       47.28
         22 |        143        2.24       49.52
         23 |         12        0.19       49.71
         24 |        116        1.82       51.53
         25 |         88        1.38       52.91
         26 |        187        2.93       55.84
         27 |         26        0.41       56.25
         28 |         61        0.96       57.21
         29 |         79        1.24       58.45
         30 |         12        0.19       58.64
         31 |         11        0.17       58.81
         32 |         84        1.32       60.13
         33 |         16        0.25       60.38
         34 |        199        3.12       63.50
         35 |         80        1.26       64.76
         36 |        360        5.65       70.41
         37 |        203        3.19       73.59
         38 |         15        0.24       73.83
         39 |        125        1.96       75.79
         40 |         61        0.96       76.75
         41 |         70        1.10       77.84
         42 |        210        3.30       81.14
         44 |         16        0.25       81.39
         45 |        127        1.99       83.38
         46 |         13        0.20       83.59
         47 |        107        1.68       85.27
         48 |        591        9.27       94.54
         49 |         52        0.82       95.36
         50 |          5        0.08       95.43
         51 |        107        1.68       97.11
         53 |        100        1.57       98.68
         54 |         23        0.36       99.04
         55 |         49        0.77       99.81
         56 |         12        0.19      100.00
------------+-----------------------------------
      Total |      6,373      100.00

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