Frequencies for first 10,000 rows of lag_mins variable in person dataset :

   lag_mins |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,516       15.16       15.16
          1 |         28        0.28       15.44
          2 |         46        0.46       15.90
          3 |         33        0.33       16.23
          4 |         23        0.23       16.46
          5 |         82        0.82       17.28
          6 |         24        0.24       17.52
          7 |         39        0.39       17.91
          8 |         30        0.30       18.21
          9 |         31        0.31       18.52
         10 |         75        0.75       19.27
         11 |         25        0.25       19.52
         12 |         34        0.34       19.86
         13 |         41        0.41       20.27
         14 |         41        0.41       20.68
         15 |         73        0.73       21.41
         16 |         26        0.26       21.67
         17 |         24        0.24       21.91
         18 |         30        0.30       22.21
         19 |         26        0.26       22.47
         20 |         60        0.60       23.07
         21 |         32        0.32       23.39
         22 |         40        0.40       23.79
         23 |         27        0.27       24.06
         24 |         21        0.21       24.27
         25 |         56        0.56       24.83
         26 |         24        0.24       25.07
         27 |         38        0.38       25.45
         28 |         30        0.30       25.75
         29 |         24        0.24       25.99
         30 |         82        0.82       26.81
         31 |         36        0.36       27.17
         32 |         25        0.25       27.42
         33 |         28        0.28       27.70
         34 |         28        0.28       27.98
         35 |         66        0.66       28.64
         36 |         39        0.39       29.03
         37 |         27        0.27       29.30
         38 |         25        0.25       29.55
         39 |         32        0.32       29.87
         40 |         47        0.47       30.34
         41 |         33        0.33       30.67
         42 |         29        0.29       30.96
         43 |         32        0.32       31.28
         44 |         15        0.15       31.43
         45 |         71        0.71       32.14
         46 |         29        0.29       32.43
         47 |         32        0.32       32.75
         48 |         28        0.28       33.03
         49 |         30        0.30       33.33
         50 |         65        0.65       33.98
         51 |         25        0.25       34.23
         52 |         37        0.37       34.60
         53 |         13        0.13       34.73
         54 |         22        0.22       34.95
         55 |         47        0.47       35.42
         56 |         22        0.22       35.64
         57 |         20        0.20       35.84
         58 |         21        0.21       36.05
         59 |         19        0.19       36.24
         60 |          7        0.07       36.31
         99 |      6,369       63.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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