Frequencies for first 10,000 rows of last_rpt_sw variable in snf_rpt2540_10_201

last report |
     switch |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      9,938       99.38       99.38
          X |         36        0.36       99.74
          Y |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Apr 2018