Frequencies for first 10,000 rows of minute variable in vehicle dataset :

     minute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        551        5.51        5.51
          1 |        115        1.15        6.66
          2 |         99        0.99        7.65
          3 |         82        0.82        8.47
          4 |        105        1.05        9.52
          5 |        350        3.50       13.02
          6 |         79        0.79       13.81
          7 |        109        1.09       14.90
          8 |        130        1.30       16.20
          9 |        101        1.01       17.21
         10 |        420        4.20       21.41
         11 |        106        1.06       22.47
         12 |        126        1.26       23.73
         13 |         94        0.94       24.67
         14 |        114        1.14       25.81
         15 |        414        4.14       29.95
         16 |         96        0.96       30.91
         17 |         98        0.98       31.89
         18 |        107        1.07       32.96
         19 |        113        1.13       34.09
         20 |        421        4.21       38.30
         21 |         72        0.72       39.02
         22 |         90        0.90       39.92
         23 |        112        1.12       41.04
         24 |         79        0.79       41.83
         25 |        346        3.46       45.29
         26 |        107        1.07       46.36
         27 |        111        1.11       47.47
         28 |        128        1.28       48.75
         29 |         93        0.93       49.68
         30 |        584        5.84       55.52
         31 |         72        0.72       56.24
         32 |        110        1.10       57.34
         33 |        118        1.18       58.52
         34 |        102        1.02       59.54
         35 |        338        3.38       62.92
         36 |         84        0.84       63.76
         37 |         98        0.98       64.74
         38 |        126        1.26       66.00
         39 |         86        0.86       66.86
         40 |        371        3.71       70.57
         41 |         61        0.61       71.18
         42 |         93        0.93       72.11
         43 |        104        1.04       73.15
         44 |         97        0.97       74.12
         45 |        430        4.30       78.42
         46 |         97        0.97       79.39
         47 |         98        0.98       80.37
         48 |        113        1.13       81.50
         49 |         95        0.95       82.45
         50 |        411        4.11       86.56
         51 |         88        0.88       87.44
         52 |         98        0.98       88.42
         53 |         83        0.83       89.25
         54 |        103        1.03       90.28
         55 |        383        3.83       94.11
         56 |        123        1.23       95.34
         57 |        107        1.07       96.41
         58 |        114        1.14       97.55
         59 |        115        1.15       98.70
         99 |        130        1.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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