Frequencies for first 10,000 rows of nrsng_srvc_cd variable in pos2018 dataset :

  Services: |
    Nursing |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,164       81.64       81.64
          1 |      1,777       17.77       99.41
          2 |          3        0.03       99.44
          3 |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019