Frequencies for zipcodes variable in servarea2018 dataset : Zip Codes | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 10,898 99.41 99.41 16801, 16802, 16803, 16804, 16805, 16.. | 3 0.03 99.43 20041, 20598 | 6 0.05 99.49 20119, 22720, 22728 | 2 0.02 99.51 20120, 20121, 20122, 20124, 20151, 20.. | 3 0.03 99.53 22003, 22009, 22015, 22027, 22030, 22.. | 6 0.05 99.59 22125, 22191, 22192, 22194 | 6 0.05 99.64 22443 | 2 0.02 99.66 22446, 22535, 22538, 22546, 22580 | 2 0.02 99.68 22508, 22567, 22960 | 2 0.02 99.70 22736 | 2 0.02 99.72 23015 | 2 0.02 99.74 23024, 23117, 23170 | 2 0.02 99.75 48007, 48009, 48012, 48017, 48025, 48.. | 1 0.01 99.76 48015, 48021, 48026, 48035, 48036, 48.. | 1 0.01 99.77 48103, 48104, 48105, 48108, 48118, 48.. | 1 0.01 99.78 48110, 48117, 48133, 48145, 48157, 48.. | 1 0.01 99.79 48371, 48440, 48455, 48462 | 1 0.01 99.80 48401, 48410, 48419, 48422, 48426, 48.. | 1 0.01 99.81 48624, 48651, 48653, 48656 | 1 0.01 99.82 48636, 48647, 48654, 48761 | 1 0.01 99.83 48811, 48818, 48829, 48834, 48838, 48.. | 2 0.02 99.84 48827, 49251, 49264 | 1 0.01 99.85 49011, 49014, 49015, 49017, 49021, 49.. | 2 0.02 99.87 49030, 49032, 49042, 49067, 49072, 49.. | 1 0.01 99.88 49301, 49302, 49306, 49315, 49316, 49.. | 1 0.01 99.89 49304, 49309, 49402, 49623, 49642, 49.. | 1 0.01 99.90 49402, 49405, 49410, 49431, 49449, 49.. | 1 0.01 99.91 49420, 49421, 49425, 49436, 49449, 49.. | 1 0.01 99.92 49631, 49639, 49677, 49679, 49688 | 1 0.01 99.93 54408, 54409, 54414, 54416, 54427, 54.. | 1 0.01 99.94 97014 | 2 0.02 99.95 97132 | 1 0.01 99.96 97321, 97322, 97333, 97335, 97346, 97.. | 2 0.02 99.98 97321, 97330, 97331, 97333, 97339, 97.. | 2 0.02 100.00 ----------------------------------------+----------------------------------- Total | 10,963 100.00 by Jean Roth , jroth@nber.org , 8 Dec 2017