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

     county |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        281        2.81        2.81
          3 |         99        0.99        3.80
          5 |        144        1.44        5.24
          7 |        151        1.51        6.75
          9 |         61        0.61        7.36
         11 |         21        0.21        7.57
         12 |         51        0.51        8.08
         13 |      1,005       10.05       18.13
         15 |        144        1.44       19.57
         17 |        138        1.38       20.95
         19 |        504        5.04       25.99
         20 |         33        0.33       26.32
         21 |        207        2.07       28.39
         23 |        106        1.06       29.45
         25 |        160        1.60       31.05
         27 |         66        0.66       31.71
         29 |        247        2.47       34.18
         31 |        115        1.15       35.33
         33 |         73        0.73       36.06
         35 |         67        0.67       36.73
         37 |      1,066       10.66       47.39
         39 |         70        0.70       48.09
         41 |         24        0.24       48.33
         43 |         49        0.49       48.82
         45 |         93        0.93       49.75
         47 |        124        1.24       50.99
         49 |         46        0.46       51.45
         50 |          2        0.02       51.47
         51 |         68        0.68       52.15
         53 |         95        0.95       53.10
         55 |         64        0.64       53.74
         57 |         45        0.45       54.19
         59 |        290        2.90       57.09
         61 |         66        0.66       57.75
         63 |         28        0.28       58.03
         65 |        319        3.19       61.22
         67 |        177        1.77       62.99
         68 |          2        0.02       63.01
         69 |         80        0.80       63.81
         70 |          4        0.04       63.85
         71 |        391        3.91       67.76
         73 |        587        5.87       73.63
         75 |         17        0.17       73.80
         77 |        114        1.14       74.94
         79 |         53        0.53       75.47
         81 |        100        1.00       76.47
         83 |         78        0.78       77.25
         85 |        160        1.60       78.85
         87 |         37        0.37       79.22
         89 |        156        1.56       80.78
         90 |         27        0.27       81.05
         91 |         44        0.44       81.49
         93 |         55        0.55       82.04
         95 |         80        0.80       82.84
         97 |        187        1.87       84.71
         99 |        119        1.19       85.90
        101 |         97        0.97       86.87
        103 |         55        0.55       87.42
        105 |         23        0.23       87.65
        107 |        141        1.41       89.06
        109 |         19        0.19       89.25
        110 |          2        0.02       89.27
        111 |        130        1.30       90.57
        113 |         56        0.56       91.13
        115 |        133        1.33       92.46
        117 |         47        0.47       92.93
        119 |        116        1.16       94.09
        121 |         53        0.53       94.62
        122 |         32        0.32       94.94
        123 |         24        0.24       95.18
        125 |        131        1.31       96.49
        127 |         51        0.51       97.00
        129 |         36        0.36       97.36
        130 |          4        0.04       97.40
        131 |         27        0.27       97.67
        133 |         18        0.18       97.85
        135 |         14        0.14       97.99
        137 |          2        0.02       98.01
        139 |         29        0.29       98.30
        141 |         10        0.10       98.40
        143 |         41        0.41       98.81
        145 |         33        0.33       99.14
        147 |          5        0.05       99.19
        149 |         41        0.41       99.60
        170 |         24        0.24       99.84
        188 |          1        0.01       99.85
        201 |          4        0.04       99.89
        220 |          2        0.02       99.91
        240 |          2        0.02       99.93
        261 |          6        0.06       99.99
        999 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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