Frequencies for first 10,000 rows of pct017h066 variable in sf12000860us35 dataset :

Correctiona |
          l |
institution |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,992       99.92       99.92
          1 |          4        0.04       99.96
          2 |          3        0.03       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017