Frequencies for first 10,000 rows of totproc variable in nhamcsed2010 dataset :

    Total number of procedures provided |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
'none' box and all item fields are blan |        303        3.03        3.03
                                      0 |      5,049       50.49       53.52
                                      1 |      3,899       38.99       92.51
                                      2 |        643        6.43       98.94
                                      3 |         83        0.83       99.77
                                      4 |         20        0.20       99.97
                                      5 |          2        0.02       99.99
                                      6 |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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