Frequencies for first 10,000 rows of prov5680 variable in pos1999 dataset :

surety bond |
  indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,851       98.51       98.51
          N |        132        1.32       99.83
          W |          6        0.06       99.89
          Y |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016