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

   lag_mins |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,482       14.82       14.82
          1 |         59        0.59       15.41
          2 |         59        0.59       16.00
          3 |         29        0.29       16.29
          4 |         56        0.56       16.85
          5 |         81        0.81       17.66
          6 |         59        0.59       18.25
          7 |         50        0.50       18.75
          8 |         34        0.34       19.09
          9 |         40        0.40       19.49
         10 |        109        1.09       20.58
         11 |         64        0.64       21.22
         12 |         41        0.41       21.63
         13 |         44        0.44       22.07
         14 |         30        0.30       22.37
         15 |         75        0.75       23.12
         16 |         37        0.37       23.49
         17 |         31        0.31       23.80
         18 |         38        0.38       24.18
         19 |         30        0.30       24.48
         20 |         67        0.67       25.15
         21 |         34        0.34       25.49
         22 |         30        0.30       25.79
         23 |         38        0.38       26.17
         24 |         38        0.38       26.55
         25 |         57        0.57       27.12
         26 |         37        0.37       27.49
         27 |         25        0.25       27.74
         28 |         41        0.41       28.15
         29 |         31        0.31       28.46
         30 |         69        0.69       29.15
         31 |         31        0.31       29.46
         32 |         41        0.41       29.87
         33 |         34        0.34       30.21
         34 |         39        0.39       30.60
         35 |         76        0.76       31.36
         36 |         42        0.42       31.78
         37 |         32        0.32       32.10
         38 |         46        0.46       32.56
         39 |         32        0.32       32.88
         40 |         68        0.68       33.56
         41 |         30        0.30       33.86
         42 |         28        0.28       34.14
         43 |         31        0.31       34.45
         44 |         33        0.33       34.78
         45 |         73        0.73       35.51
         46 |         33        0.33       35.84
         47 |         42        0.42       36.26
         48 |         31        0.31       36.57
         49 |         27        0.27       36.84
         50 |         67        0.67       37.51
         51 |         33        0.33       37.84
         52 |         25        0.25       38.09
         53 |         32        0.32       38.41
         54 |         25        0.25       38.66
         55 |         63        0.63       39.29
         56 |         15        0.15       39.44
         57 |         34        0.34       39.78
         58 |         28        0.28       40.06
         59 |         35        0.35       40.41
         99 |      5,959       59.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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