Frequencies for first 10,000 rows of county variable in ma2008 dataset : County | Freq. Percent Cum. --------------------------------+----------------------------------- | 6 0.06 0.06 (All Counties) | 251 2.51 2.57 Autauga | 268 2.68 5.25 Baldwin | 290 2.90 8.15 Barbour | 139 1.39 9.54 Bibb | 252 2.52 12.06 Blount | 262 2.62 14.68 Bullock | 186 1.86 16.54 Butler | 80 0.80 17.34 Calhoun | 126 1.26 18.60 Chambers | 147 1.47 20.07 Cherokee | 213 2.13 22.20 Chilton | 245 2.45 24.65 Choctaw | 109 1.09 25.74 Clarke | 142 1.42 27.16 Clay | 114 1.14 28.30 Cleburne | 99 0.99 29.29 Coffee | 127 1.27 30.56 Colbert | 140 1.40 31.96 Conecuh | 119 1.19 33.15 Coosa | 119 1.19 34.34 Covington | 86 0.86 35.20 Crenshaw | 139 1.39 36.59 Cullman | 189 1.89 38.48 Dale | 119 1.19 39.67 Dallas | 144 1.44 41.11 DeKalb | 183 1.83 42.94 Elmore | 273 2.73 45.67 Escambia | 113 1.13 46.80 Etowah | 199 1.99 48.79 Fayette | 193 1.93 50.72 Franklin | 129 1.29 52.01 Geneva | 123 1.23 53.24 Greene | 92 0.92 54.16 Hale | 96 0.96 55.12 Henry | 157 1.57 56.69 Houston | 143 1.43 58.12 Jackson | 113 1.13 59.25 Jefferson | 353 3.53 62.78 Lamar | 144 1.44 64.22 Lauderdale | 143 1.43 65.65 Lawrence | 115 1.15 66.80 Lee | 159 1.59 68.39 Limestone | 206 2.06 70.45 Lowndes | 271 2.71 73.16 Macon | 226 2.26 75.42 Madison | 227 2.27 77.69 Marengo | 109 1.09 78.78 Marion | 128 1.28 80.06 Marshall | 124 1.24 81.30 Mobile | 351 3.51 84.81 Monroe | 106 1.06 85.87 Montgomery | 290 2.90 88.77 Morgan | 146 1.46 90.23 Perry | 106 1.06 91.29 Pickens | 88 0.88 92.17 Pike | 139 1.39 93.56 Randolph | 144 1.44 95.00 Russell | 199 1.99 96.99 Shelby | 301 3.01 100.00 --------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016