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

     county |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        198        1.98        1.98
          3 |        145        1.45        3.43
          5 |        168        1.68        5.11
          7 |        127        1.27        6.38
          9 |         80        0.80        7.18
         11 |         15        0.15        7.33
         12 |         57        0.57        7.90
         13 |        960        9.60       17.50
         15 |        197        1.97       19.47
         17 |        180        1.80       21.27
         19 |        548        5.48       26.75
         20 |         81        0.81       27.56
         21 |        175        1.75       29.31
         23 |         30        0.30       29.61
         25 |        170        1.70       31.31
         27 |         91        0.91       32.22
         29 |        187        1.87       34.09
         31 |         92        0.92       35.01
         33 |         78        0.78       35.79
         35 |         71        0.71       36.50
         37 |        885        8.85       45.35
         39 |         67        0.67       46.02
         41 |         47        0.47       46.49
         43 |        103        1.03       47.52
         45 |         62        0.62       48.14
         47 |        121        1.21       49.35
         49 |         55        0.55       49.90
         50 |          2        0.02       49.92
         51 |        108        1.08       51.00
         53 |         75        0.75       51.75
         55 |         83        0.83       52.58
         57 |         50        0.50       53.08
         59 |        245        2.45       55.53
         61 |         75        0.75       56.28
         63 |         46        0.46       56.74
         65 |        218        2.18       58.92
         67 |        127        1.27       60.19
         69 |         75        0.75       60.94
         70 |          2        0.02       60.96
         71 |        334        3.34       64.30
         73 |        583        5.83       70.13
         75 |         97        0.97       71.10
         77 |        139        1.39       72.49
         79 |         51        0.51       73.00
         81 |         84        0.84       73.84
         83 |         97        0.97       74.81
         85 |        125        1.25       76.06
         87 |         29        0.29       76.35
         89 |        114        1.14       77.49
         90 |         26        0.26       77.75
         91 |         71        0.71       78.46
         93 |         72        0.72       79.18
         95 |        101        1.01       80.19
         97 |        291        2.91       83.10
         99 |         79        0.79       83.89
        101 |        121        1.21       85.10
        103 |         45        0.45       85.55
        105 |         12        0.12       85.67
        107 |        138        1.38       87.05
        109 |         30        0.30       87.35
        110 |          6        0.06       87.41
        111 |        125        1.25       88.66
        113 |         59        0.59       89.25
        115 |         49        0.49       89.74
        117 |         90        0.90       90.64
        119 |        161        1.61       92.25
        121 |         92        0.92       93.17
        122 |         44        0.44       93.61
        123 |         49        0.49       94.10
        125 |        118        1.18       95.28
        127 |         85        0.85       96.13
        129 |         37        0.37       96.50
        130 |          3        0.03       96.53
        131 |         41        0.41       96.94
        133 |         37        0.37       97.31
        135 |         10        0.10       97.41
        137 |          8        0.08       97.49
        139 |         30        0.30       97.79
        141 |          2        0.02       97.81
        143 |         67        0.67       98.48
        145 |         28        0.28       98.76
        147 |         15        0.15       98.91
        149 |          7        0.07       98.98
        150 |          6        0.06       99.04
        170 |         44        0.44       99.48
        180 |          1        0.01       99.49
        185 |          4        0.04       99.53
        188 |          5        0.05       99.58
        220 |          7        0.07       99.65
        240 |         10        0.10       99.75
        261 |          8        0.08       99.83
        270 |          3        0.03       99.86
        280 |          5        0.05       99.91
        290 |          7        0.07       99.98
        997 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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