Frequencies for first 10,000 rows of nrsng_srvc_cd variable in pos2014 dataset 

  Services: |
    Nursing |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,062       80.62       80.62
          1 |      1,855       18.55       99.17
          2 |          7        0.07       99.24
          3 |         76        0.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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