Frequencies for minute variable in vehnit dataset :

     minute |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         57        5.11        5.11
          1 |          7        0.63        5.73
          2 |         15        1.34        7.08
          3 |          7        0.63        7.71
          4 |          3        0.27        7.97
          5 |         54        4.84       12.81
          6 |         18        1.61       14.43
          7 |         10        0.90       15.32
          8 |         20        1.79       17.11
          9 |         17        1.52       18.64
         10 |         35        3.14       21.77
         11 |         24        2.15       23.92
         12 |         18        1.61       25.54
         13 |          5        0.45       25.99
         14 |         21        1.88       27.87
         15 |         31        2.78       30.65
         16 |         14        1.25       31.90
         17 |         21        1.88       33.78
         18 |         14        1.25       35.04
         19 |         21        1.88       36.92
         20 |         47        4.21       41.13
         21 |         20        1.79       42.92
         22 |         15        1.34       44.27
         23 |         10        0.90       45.16
         24 |         25        2.24       47.40
         25 |         27        2.42       49.82
         26 |         10        0.90       50.72
         27 |          8        0.72       51.43
         28 |         13        1.16       52.60
         29 |          6        0.54       53.14
         30 |         48        4.30       57.44
         31 |         14        1.25       58.69
         32 |         14        1.25       59.95
         33 |         14        1.25       61.20
         34 |          3        0.27       61.47
         35 |         41        3.67       65.14
         36 |         21        1.88       67.03
         37 |         11        0.99       68.01
         38 |         10        0.90       68.91
         39 |          8        0.72       69.62
         40 |         27        2.42       72.04
         41 |         10        0.90       72.94
         42 |         16        1.43       74.37
         43 |         17        1.52       75.90
         44 |         11        0.99       76.88
         45 |         29        2.60       79.48
         46 |         27        2.42       81.90
         47 |         13        1.16       83.06
         48 |          6        0.54       83.60
         49 |         10        0.90       84.50
         50 |         47        4.21       88.71
         51 |          8        0.72       89.43
         52 |         16        1.43       90.86
         53 |         17        1.52       92.38
         54 |         14        1.25       93.64
         55 |         21        1.88       95.52
         56 |         12        1.08       96.59
         57 |          8        0.72       97.31
         58 |         15        1.34       98.66
         59 |         14        1.25       99.91
         99 |          1        0.09      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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