Frequencies for first 10,000 rows of cstratm variable in namcs2005 dataset :

  clustered |
 cstratm -- |
     masked |      Freq.     Percent        Cum.
------------+-----------------------------------
   2.01e+07 |         95        0.95        0.95
   2.01e+07 |        235        2.35        3.30
   2.01e+07 |        335        3.35        6.65
   2.01e+07 |        317        3.17        9.82
   2.01e+07 |        149        1.49       11.31
   2.02e+07 |        258        2.58       13.89
   2.02e+07 |        204        2.04       15.93
   2.02e+07 |        122        1.22       17.15
   2.02e+07 |        183        1.83       18.98
   2.02e+07 |        127        1.27       20.25
   2.03e+07 |        201        2.01       22.26
   2.03e+07 |        205        2.05       24.31
   2.03e+07 |        181        1.81       26.12
   2.03e+07 |        261        2.61       28.73
   2.04e+07 |        550        5.50       34.23
   2.04e+07 |        185        1.85       36.08
   2.04e+07 |        187        1.87       37.95
   2.04e+07 |        560        5.60       43.55
   4.01e+07 |      1,193       11.93       55.48
   4.02e+07 |      1,595       15.95       71.43
   4.03e+07 |      2,181       21.81       93.24
   4.04e+07 |        676        6.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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