Frequencies for first 10,000 rows of crtfct_type_cd variable in posclia2015 dat

       CLIA |
Certificate |
  Type Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,192       11.92       11.92
          2 |      6,556       65.56       77.48
          3 |        419        4.19       81.67
          4 |      1,029       10.29       91.96
          9 |        476        4.76       96.72
          . |        328        3.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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