Frequencies for first 10,000 rows of uprevis variable in natl2011 dataset :

  Number of |
   Prenatal |
 Visits RFP |
 671=f_tpcv |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         55        0.55        0.55
          1 |         80        0.80        1.35
          2 |        127        1.27        2.62
          3 |        178        1.78        4.40
          4 |        267        2.67        7.07
          5 |        385        3.85       10.92
          6 |        484        4.84       15.76
          7 |        644        6.44       22.20
          8 |        796        7.96       30.16
          9 |        962        9.62       39.78
         10 |      1,222       12.22       52.00
         11 |        878        8.78       60.78
         12 |      1,004       10.04       70.82
         13 |        733        7.33       78.15
         14 |        477        4.77       82.92
         15 |        366        3.66       86.58
         16 |        193        1.93       88.51
         17 |         97        0.97       89.48
         18 |         85        0.85       90.33
         19 |         45        0.45       90.78
         20 |         71        0.71       91.49
         21 |         18        0.18       91.67
         22 |         21        0.21       91.88
         23 |         14        0.14       92.02
         24 |         10        0.10       92.12
         25 |         10        0.10       92.22
         26 |          4        0.04       92.26
         28 |          2        0.02       92.28
         29 |          1        0.01       92.29
         30 |          4        0.04       92.33
         31 |          1        0.01       92.34
         32 |          1        0.01       92.35
         33 |          1        0.01       92.36
         34 |          1        0.01       92.37
         35 |          3        0.03       92.40
         37 |          1        0.01       92.41
         40 |          4        0.04       92.45
         49 |          1        0.01       92.46
         99 |        754        7.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015