Frequencies for first 10,000 rows of ratingareaid variable in rate2015 dataset :

Rating Area ID |      Freq.     Percent        Cum.
---------------+-----------------------------------
 Rating Area 1 |      3,352       33.52       33.52
 Rating Area 2 |      3,324       33.24       66.76
 Rating Area 3 |      3,324       33.24      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 9 Dec 2017