Frequencies for first 10,000 rows of rfid variable in sippp08putm1 dataset :

 FA: Family |
  ID Number |
   for this |
      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |      8,405       84.05       84.05
          5 |          5        0.05       84.10
          7 |      1,004       10.04       94.14
          8 |        310        3.10       97.24
         10 |        157        1.57       98.81
         11 |         39        0.39       99.20
         12 |         45        0.45       99.65
         13 |         10        0.10       99.75
         14 |          5        0.05       99.80
         15 |          5        0.05       99.85
         16 |         11        0.11       99.96
         18 |          2        0.02       99.98
         19 |          1        0.01       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016