Frequencies for first 10,000 rows of services variable in namcs2012 dataset :

     Were any services ordered or |
provided at this visit? (Based on |
                SERVICES item onl |      Freq.     Percent        Cum.
----------------------------------+-----------------------------------
        No services were reported |        736        7.36        7.36
At least one service was reported |      8,960       89.60       96.96
                Entire item blank |        304        3.04      100.00
----------------------------------+-----------------------------------
                            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016