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

     county |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        200        2.00        2.00
          3 |        134        1.34        3.34
          5 |         99        0.99        4.33
          7 |        115        1.15        5.48
          9 |         61        0.61        6.09
         11 |         48        0.48        6.57
         12 |         31        0.31        6.88
         13 |      1,185       11.85       18.73
         15 |        163        1.63       20.36
         17 |        143        1.43       21.79
         19 |        538        5.38       27.17
         20 |         45        0.45       27.62
         21 |        220        2.20       29.82
         23 |         80        0.80       30.62
         25 |        160        1.60       32.22
         27 |         81        0.81       33.03
         29 |        250        2.50       35.53
         31 |         66        0.66       36.19
         33 |         67        0.67       36.86
         35 |         51        0.51       37.37
         37 |      1,006       10.06       47.43
         39 |         49        0.49       47.92
         41 |         29        0.29       48.21
         43 |         45        0.45       48.66
         45 |         79        0.79       49.45
         47 |        114        1.14       50.59
         49 |         35        0.35       50.94
         50 |          1        0.01       50.95
         51 |         86        0.86       51.81
         53 |         76        0.76       52.57
         55 |         67        0.67       53.24
         57 |         45        0.45       53.69
         59 |        305        3.05       56.74
         61 |         31        0.31       57.05
         63 |         31        0.31       57.36
         65 |        380        3.80       61.16
         67 |        214        2.14       63.30
         68 |          3        0.03       63.33
         69 |         51        0.51       63.84
         70 |          1        0.01       63.85
         71 |        441        4.41       68.26
         73 |        581        5.81       74.07
         75 |         66        0.66       74.73
         77 |        124        1.24       75.97
         79 |         61        0.61       76.58
         81 |        121        1.21       77.79
         83 |         88        0.88       78.67
         85 |        136        1.36       80.03
         87 |         49        0.49       80.52
         89 |        109        1.09       81.61
         90 |         12        0.12       81.73
         91 |         37        0.37       82.10
         93 |         45        0.45       82.55
         95 |        127        1.27       83.82
         97 |        231        2.31       86.13
         99 |        108        1.08       87.21
        101 |         76        0.76       87.97
        103 |         65        0.65       88.62
        105 |         20        0.20       88.82
        107 |        134        1.34       90.16
        109 |         37        0.37       90.53
        111 |        125        1.25       91.78
        113 |         65        0.65       92.43
        115 |         63        0.63       93.06
        117 |         84        0.84       93.90
        119 |        136        1.36       95.26
        121 |         50        0.50       95.76
        122 |          9        0.09       95.85
        123 |         35        0.35       96.20
        125 |        105        1.05       97.25
        127 |         32        0.32       97.57
        129 |         13        0.13       97.70
        131 |         34        0.34       98.04
        133 |         20        0.20       98.24
        135 |         10        0.10       98.34
        137 |          5        0.05       98.39
        139 |          9        0.09       98.48
        141 |         13        0.13       98.61
        143 |         37        0.37       98.98
        145 |         33        0.33       99.31
        147 |         15        0.15       99.46
        149 |          8        0.08       99.54
        150 |          1        0.01       99.55
        170 |         28        0.28       99.83
        188 |          2        0.02       99.85
        201 |          2        0.02       99.87
        240 |          4        0.04       99.91
        261 |          2        0.02       99.93
        270 |          2        0.02       99.95
        290 |          2        0.02       99.97
        999 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016