Frequencies for first 10,000 rows of p012e028 variable in sf12010860us7 dataset :

     5 to 9 |
      years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,037       90.37       90.37
          1 |        653        6.53       96.90
          2 |        173        1.73       98.63
          3 |         74        0.74       99.37
          4 |         28        0.28       99.65
          5 |         22        0.22       99.87
          6 |          2        0.02       99.89
          8 |          2        0.02       99.91
          9 |          3        0.03       99.94
         11 |          2        0.02       99.96
         12 |          1        0.01       99.97
         13 |          2        0.02       99.99
         16 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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