Frequencies for first 10,000 rows of nrsng_srvc_cd variable in pos2008 dataset :

       srv: |
    nursing |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,336       73.36       73.36
          0 |        138        1.38       74.74
          1 |      2,376       23.76       98.50
          2 |         13        0.13       98.63
          3 |        137        1.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017