Frequencies for first 10,000 rows of nrlgcl_srgry_sw variable in pos2007 dataset :

      spec: |
neurologica |
          l |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,666       96.66       96.66
          N |        291        2.91       99.57
          Y |         43        0.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017