Frequencies for first 10,000 rows of crtfct_type_cd variable in posclia2011 dat

       CLIA |
Certificate |
  Type Code |
        (1) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,260       12.60       12.60
          2 |      6,446       64.46       77.06
          3 |        405        4.05       81.11
          4 |      1,137       11.37       92.48
          9 |        377        3.77       96.25
          . |        375        3.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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