Frequencies for first 10,000 rows of prov2095 variable in pos1997 dataset :

      spec: |
cardiovascu |
        lar |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,456       94.56       94.56
          N |        507        5.07       99.63
          Y |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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