Frequencies for reg_stat variable in vehnit dataset :

REGISTRATIO |
    N STATE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         18        1.61        1.61
          1 |         10        0.90        2.51
          4 |         11        0.99        3.49
          5 |         14        1.25        4.75
          6 |        150       13.44       18.19
          8 |         15        1.34       19.53
          9 |          8        0.72       20.25
         10 |          3        0.27       20.52
         11 |          6        0.54       21.06
         12 |         96        8.60       29.66
         13 |         21        1.88       31.54
         15 |          6        0.54       32.08
         16 |          4        0.36       32.44
         17 |         24        2.15       34.59
         18 |         24        2.15       36.74
         19 |          6        0.54       37.28
         20 |          6        0.54       37.81
         21 |         17        1.52       39.34
         22 |         18        1.61       40.95
         23 |          1        0.09       41.04
         24 |         24        2.15       43.19
         25 |         21        1.88       45.07
         26 |         24        2.15       47.22
         27 |          7        0.63       47.85
         28 |          2        0.18       48.03
         29 |         12        1.08       49.10
         31 |          7        0.63       49.73
         32 |          5        0.45       50.18
         33 |          1        0.09       50.27
         34 |         34        3.05       53.32
         35 |          2        0.18       53.49
         36 |        106        9.50       62.99
         37 |         27        2.42       65.41
         39 |         33        2.96       68.37
         40 |         13        1.16       69.53
         41 |          9        0.81       70.34
         42 |         44        3.94       74.28
         44 |          4        0.36       74.64
         45 |         28        2.51       77.15
         46 |          2        0.18       77.33
         47 |         20        1.79       79.12
         48 |         93        8.33       87.46
         49 |          9        0.81       88.26
         50 |          4        0.36       88.62
         51 |         29        2.60       91.22
         53 |         18        1.61       92.83
         54 |          8        0.72       93.55
         55 |         14        1.25       94.80
         56 |          2        0.18       94.98
         92 |         27        2.42       97.40
         93 |          7        0.63       98.03
         99 |         22        1.97      100.00
------------+-----------------------------------
      Total |      1,116      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016