Frequencies for first 10,000 rows of smsarfip variable in natlterr1995 dataset : FIPS SMSA | of | Residence | Freq. Percent Cum. ------------+----------------------------------- 0000 | 1,631 16.31 16.31 0060 | 380 3.80 20.11 0470 | 381 3.81 23.92 1310 | 798 7.98 31.90 4840 | 666 6.66 38.56 6360 | 1,077 10.77 49.33 7440 | 5,067 50.67 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015