Frequencies for first 10,000 rows of totproc variable in nhamcsed2015 dataset :

    Total number of procedures provided |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
'None' box and all item fields are blan |        262        2.62        2.62
                                      0 |      5,433       54.33       56.95
                                      1 |      3,610       36.10       93.05
                                      2 |        596        5.96       99.01
                                      3 |         75        0.75       99.76
                                      4 |         20        0.20       99.96
                                      5 |          4        0.04      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017