Frequencies for fipscounty variable in countymd1989 dataset : FIPS County | Code | Freq. Percent Cum. ------------+----------------------------------- 24000 | 1 4.00 4.00 24001 | 1 4.00 8.00 24003 | 1 4.00 12.00 24005 | 1 4.00 16.00 24009 | 1 4.00 20.00 24011 | 1 4.00 24.00 24013 | 1 4.00 28.00 24015 | 1 4.00 32.00 24017 | 1 4.00 36.00 24019 | 1 4.00 40.00 24021 | 1 4.00 44.00 24023 | 1 4.00 48.00 24025 | 1 4.00 52.00 24027 | 1 4.00 56.00 24029 | 1 4.00 60.00 24031 | 1 4.00 64.00 24033 | 1 4.00 68.00 24035 | 1 4.00 72.00 24037 | 1 4.00 76.00 24039 | 1 4.00 80.00 24041 | 1 4.00 84.00 24043 | 1 4.00 88.00 24045 | 1 4.00 92.00 24047 | 1 4.00 96.00 24510 | 1 4.00 100.00 ------------+----------------------------------- Total | 25 100.00 by Jean Roth , jroth@nber.org , 23 Jun 2017