Frequencies for first 10,000 rows of srty_bond_cd variable in pos2012 dataset :

Surety Bond |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,852       98.52       98.52
          N |        140        1.40       99.92
          W |          5        0.05       99.97
          Y |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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