Frequencies for preg_stat variable in parkwork dataset :

    vehicle |
registratio |
    n state |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         15        1.37        1.37
          1 |         14        1.28        2.66
          2 |          2        0.18        2.84
          4 |         15        1.37        4.22
          5 |         11        1.01        5.22
          6 |        177       16.22       21.45
          8 |         11        1.01       22.46
          9 |         11        1.01       23.46
         11 |          1        0.09       23.56
         12 |         57        5.22       28.78
         13 |         18        1.65       30.43
         15 |          9        0.82       31.26
         16 |          2        0.18       31.44
         17 |         47        4.31       35.75
         18 |         22        2.02       37.76
         19 |          5        0.46       38.22
         20 |         14        1.28       39.51
         21 |         11        1.01       40.51
         22 |         11        1.01       41.52
         23 |          5        0.46       41.98
         24 |         18        1.65       43.63
         25 |         13        1.19       44.82
         26 |         20        1.83       46.65
         27 |          5        0.46       47.11
         28 |          2        0.18       47.30
         29 |         20        1.83       49.13
         30 |          1        0.09       49.22
         31 |          2        0.18       49.40
         32 |          8        0.73       50.14
         33 |          1        0.09       50.23
         34 |         48        4.40       54.63
         35 |          2        0.18       54.81
         36 |         69        6.32       61.14
         37 |         24        2.20       63.34
         38 |          4        0.37       63.70
         39 |         39        3.57       67.28
         40 |         11        1.01       68.29
         41 |          6        0.55       68.84
         42 |         78        7.15       75.99
         45 |         17        1.56       77.54
         46 |          2        0.18       77.73
         47 |         14        1.28       79.01
         48 |        109        9.99       89.00
         49 |          6        0.55       89.55
         50 |          5        0.46       90.01
         51 |         14        1.28       91.29
         53 |         12        1.10       92.39
         54 |          7        0.64       93.03
         55 |         18        1.65       94.68
         56 |          1        0.09       94.78
         91 |          7        0.64       95.42
         92 |         28        2.57       97.98
         93 |          6        0.55       98.53
         95 |          1        0.09       98.63
         99 |         15        1.37      100.00
------------+-----------------------------------
      Total |      1,091      100.00

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