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

   lag_mins |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,576       15.76       15.76
          1 |         45        0.45       16.21
          2 |         44        0.44       16.65
          3 |         42        0.42       17.07
          4 |         34        0.34       17.41
          5 |        101        1.01       18.42
          6 |         33        0.33       18.75
          7 |         31        0.31       19.06
          8 |         36        0.36       19.42
          9 |         29        0.29       19.71
         10 |         68        0.68       20.39
         11 |         29        0.29       20.68
         12 |         31        0.31       20.99
         13 |         25        0.25       21.24
         14 |         25        0.25       21.49
         15 |         71        0.71       22.20
         16 |         32        0.32       22.52
         17 |         29        0.29       22.81
         18 |         32        0.32       23.13
         19 |         31        0.31       23.44
         20 |         71        0.71       24.15
         21 |         25        0.25       24.40
         22 |         34        0.34       24.74
         23 |         26        0.26       25.00
         24 |         35        0.35       25.35
         25 |         61        0.61       25.96
         26 |         28        0.28       26.24
         27 |         30        0.30       26.54
         28 |         29        0.29       26.83
         29 |         20        0.20       27.03
         30 |         71        0.71       27.74
         31 |         19        0.19       27.93
         32 |         29        0.29       28.22
         33 |         27        0.27       28.49
         34 |         22        0.22       28.71
         35 |         53        0.53       29.24
         36 |         27        0.27       29.51
         37 |         29        0.29       29.80
         38 |         32        0.32       30.12
         39 |         16        0.16       30.28
         40 |         59        0.59       30.87
         41 |         26        0.26       31.13
         42 |         33        0.33       31.46
         43 |         35        0.35       31.81
         44 |         28        0.28       32.09
         45 |         91        0.91       33.00
         46 |         24        0.24       33.24
         47 |         21        0.21       33.45
         48 |         34        0.34       33.79
         49 |         23        0.23       34.02
         50 |         59        0.59       34.61
         51 |         25        0.25       34.86
         52 |         32        0.32       35.18
         53 |         23        0.23       35.41
         54 |         27        0.27       35.68
         55 |         40        0.40       36.08
         56 |         21        0.21       36.29
         57 |         26        0.26       36.55
         58 |         22        0.22       36.77
         59 |         16        0.16       36.93
         99 |      6,307       63.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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