Frequencies for first 10,000 rows of ratingareaid variable in rate2018 dataset :

Rating Area ID |      Freq.     Percent        Cum.
---------------+-----------------------------------
 Rating Area 1 |      3,415       34.15       34.15
 Rating Area 2 |      3,379       33.79       67.94
 Rating Area 3 |      3,206       32.06      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 23 May 2018