Frequencies for first 10,000 rows of cbsasc variable in sf12010880us16 dataset :

Metropolita |
          n |
Statistical |
Area/Microp |
     olitan |
Statistical |
  Area Size |
      Code9 |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      1,887       18.87       18.87
         14 |          5        0.05       18.92
         15 |          1        0.01       18.93
         16 |        357        3.57       22.50
         17 |        868        8.68       31.18
         18 |      1,473       14.73       45.91
         19 |        773        7.73       53.64
         20 |      1,068       10.68       64.32
         21 |      1,298       12.98       77.30
         22 |        498        4.98       82.28
         23 |      1,772       17.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017