Frequencies for first 10,000 rows of rn_24_hr_wvr_sw variable in pos2013 datase

   Rn 24 Hr |
     Wvr Sw |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,117       61.17       61.17
          N |      3,881       38.81       99.98
          Y |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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