Frequencies for first 10,000 rows of scopwi2r variable in nhamcsopd2008 dataset :

      scope |
write-in #2 |
    numeric |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,976       99.76       99.76
       2121 |          2        0.02       99.78
       3142 |          1        0.01       99.79
       3323 |          1        0.01       99.80
       4513 |          6        0.06       99.86
       4514 |          1        0.01       99.87
       4516 |          2        0.02       99.89
       4523 |          8        0.08       99.97
       4823 |          1        0.01       99.98
       5421 |          1        0.01       99.99
       5631 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016