Frequencies for first 10,000 rows of totdiag variable in nhamcsed2007 dataset :

         total number of tests/services |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
'none' box and all item fields are blan |        260        2.60        2.60
                                      0 |      2,813       28.13       30.73
                                      1 |      2,152       21.52       52.25
                                      2 |        798        7.98       60.23
                                      3 |        485        4.85       65.08
                                      4 |        424        4.24       69.32
                                      5 |        462        4.62       73.94
                                      6 |        480        4.80       78.74
                                      7 |        487        4.87       83.61
                                      8 |        478        4.78       88.39
                                      9 |        386        3.86       92.25
                                     10 |        284        2.84       95.09
                                     11 |        187        1.87       96.96
                                     12 |        136        1.36       98.32
                                     13 |         82        0.82       99.14
                                     14 |         51        0.51       99.65
                                     15 |         23        0.23       99.88
                                     16 |         10        0.10       99.98
                                     17 |          2        0.02      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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