Frequencies for state variable in safetyeq dataset :

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        125        1.80        1.80
          2 |         13        0.19        1.99
          4 |        206        2.97        4.96
          5 |         53        0.76        5.72
          6 |        960       13.84       19.56
          8 |         84        1.21       20.77
          9 |         51        0.74       21.51
         10 |         41        0.59       22.10
         11 |         18        0.26       22.36
         12 |        860       12.40       34.76
         13 |        234        3.37       38.13
         15 |         31        0.45       38.58
         16 |          8        0.12       38.69
         17 |        188        2.71       41.40
         18 |        126        1.82       43.22
         19 |         35        0.50       43.72
         20 |         34        0.49       44.21
         21 |         92        1.33       45.54
         22 |        147        2.12       47.66
         23 |         35        0.50       48.16
         24 |        118        1.70       49.86
         25 |         87        1.25       51.12
         26 |        227        3.27       54.39
         27 |         51        0.74       55.12
         28 |         73        1.05       56.18
         29 |        122        1.76       57.94
         30 |         16        0.23       58.17
         31 |         26        0.37       58.54
         32 |         93        1.34       59.88
         33 |         14        0.20       60.08
         34 |        207        2.98       63.07
         35 |         62        0.89       63.96
         36 |        393        5.67       69.63
         37 |        226        3.26       72.88
         38 |          8        0.12       73.00
         39 |        170        2.45       75.45
         40 |         86        1.24       76.69
         41 |         86        1.24       77.93
         42 |        199        2.87       80.80
         44 |          9        0.13       80.93
         45 |        146        2.10       83.03
         46 |          6        0.09       83.12
         47 |        134        1.93       85.05
         48 |        655        9.44       94.49
         49 |         55        0.79       95.29
         50 |          9        0.13       95.42
         51 |         99        1.43       96.84
         53 |        110        1.59       98.43
         54 |         21        0.30       98.73
         55 |         82        1.18       99.91
         56 |          6        0.09      100.00
------------+-----------------------------------
      Total |      6,937      100.00

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