Frequencies for first 10,000 rows of swave variable in sipprw08w1 dataset :

SU: Wave of |
       data |
 collection |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016