Frequencies for first 10,000 rows of uprevis variable in natlterr2012 dataset :

  Number of |
   Prenatal |
 Visits RFP |
 671=f_tpcv |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        299        2.99        2.99
          1 |        115        1.15        4.14
          2 |        143        1.43        5.57
          3 |        164        1.64        7.21
          4 |        225        2.25        9.46
          5 |        289        2.89       12.35
          6 |        352        3.52       15.87
          7 |        428        4.28       20.15
          8 |        611        6.11       26.26
          9 |        666        6.66       32.92
         10 |      1,116       11.16       44.08
         11 |        668        6.68       50.76
         12 |        939        9.39       60.15
         13 |        527        5.27       65.42
         14 |        488        4.88       70.30
         15 |        406        4.06       74.36
         16 |        192        1.92       76.28
         17 |        105        1.05       77.33
         18 |         86        0.86       78.19
         19 |         36        0.36       78.55
         20 |        113        1.13       79.68
         21 |          8        0.08       79.76
         22 |          7        0.07       79.83
         23 |         10        0.10       79.93
         24 |          3        0.03       79.96
         25 |         19        0.19       80.15
         27 |          2        0.02       80.17
         30 |          9        0.09       80.26
         32 |          1        0.01       80.27
         35 |          1        0.01       80.28
         36 |          3        0.03       80.31
         37 |          1        0.01       80.32
         38 |          1        0.01       80.33
         39 |          1        0.01       80.34
         40 |          5        0.05       80.39
         41 |          1        0.01       80.40
         48 |          1        0.01       80.41
         99 |      1,959       19.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 5 May 2016