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

    Total number of diagnostic services |
                    ordered or provided |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
'None' box and all item fields are blan |        122        1.22        1.22
                                      0 |      2,723       27.23       28.45
                                      1 |      2,117       21.17       49.62
                                      2 |        843        8.43       58.05
                                      3 |        621        6.21       64.26
                                      4 |        628        6.28       70.54
                                      5 |        727        7.27       77.81
                                      6 |        606        6.06       83.87
                                      7 |        511        5.11       88.98
                                      8 |        369        3.69       92.67
                                      9 |        268        2.68       95.35
                                     10 |        174        1.74       97.09
                                     11 |        100        1.00       98.09
                                     12 |         85        0.85       98.94
                                     13 |         41        0.41       99.35
                                     14 |         36        0.36       99.71
                                     15 |         11        0.11       99.82
                                     16 |         11        0.11       99.93
                                     17 |          6        0.06       99.99
                                     18 |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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