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

   lag_mins |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,908       19.08       19.08
          1 |         30        0.30       19.38
          2 |         23        0.23       19.61
          3 |         31        0.31       19.92
          4 |         28        0.28       20.20
          5 |         68        0.68       20.88
          6 |         45        0.45       21.33
          7 |         36        0.36       21.69
          8 |         21        0.21       21.90
          9 |         23        0.23       22.13
         10 |         62        0.62       22.75
         11 |         25        0.25       23.00
         12 |         29        0.29       23.29
         13 |         18        0.18       23.47
         14 |         16        0.16       23.63
         15 |         87        0.87       24.50
         16 |         26        0.26       24.76
         17 |         29        0.29       25.05
         18 |         22        0.22       25.27
         19 |         18        0.18       25.45
         20 |         47        0.47       25.92
         21 |         19        0.19       26.11
         22 |         32        0.32       26.43
         23 |         21        0.21       26.64
         24 |         18        0.18       26.82
         25 |         55        0.55       27.37
         26 |         17        0.17       27.54
         27 |         25        0.25       27.79
         28 |         30        0.30       28.09
         29 |         21        0.21       28.30
         30 |         53        0.53       28.83
         31 |         23        0.23       29.06
         32 |         23        0.23       29.29
         33 |         23        0.23       29.52
         34 |         17        0.17       29.69
         35 |         67        0.67       30.36
         36 |         27        0.27       30.63
         37 |         31        0.31       30.94
         38 |         34        0.34       31.28
         39 |         26        0.26       31.54
         40 |         90        0.90       32.44
         41 |         19        0.19       32.63
         42 |         37        0.37       33.00
         43 |         25        0.25       33.25
         44 |         25        0.25       33.50
         45 |         81        0.81       34.31
         46 |         27        0.27       34.58
         47 |         28        0.28       34.86
         48 |         27        0.27       35.13
         49 |         23        0.23       35.36
         50 |         75        0.75       36.11
         51 |         24        0.24       36.35
         52 |         27        0.27       36.62
         53 |         24        0.24       36.86
         54 |         18        0.18       37.04
         55 |         59        0.59       37.63
         56 |         21        0.21       37.84
         57 |         27        0.27       38.11
         58 |         25        0.25       38.36
         59 |         17        0.17       38.53
         99 |        186        1.86       40.39
          . |      5,961       59.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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