Frequencies for first 10,000 rows of crtfct_type_cd variable in posclia2013 dat

       CLIA |
Certificate |
  Type Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        369        3.69        3.69
          2 |      6,499       64.99       68.68
          3 |        194        1.94       70.62
          4 |      1,309       13.09       83.71
          9 |      1,268       12.68       96.39
          . |        361        3.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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