Frequencies for first 10,000 rows of schf variable in zipcode2007 dataset :

  Number of |
       farm |
    returns |
    1040:18 |      Freq.     Percent        Cum.
------------+-----------------------------------
         10 |        212        2.12        2.12
         11 |        163        1.63        3.75
         12 |         94        0.94        4.69
         13 |         60        0.60        5.29
         14 |         49        0.49        5.78
         15 |         38        0.38        6.16
         16 |         23        0.23        6.39
         17 |          9        0.09        6.48
         18 |         10        0.10        6.58
         19 |          5        0.05        6.63
         20 |          3        0.03        6.66
         22 |          3        0.03        6.69
         23 |          2        0.02        6.71
         25 |          1        0.01        6.72
         26 |          1        0.01        6.73
          . |      9,327       93.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Jun 2017