Source: NYS DOH Endpoint https://apps.health.ny.gov/statistics/environmental/public_health_tracking/tracker/rest/BD/CountyBDData?year_range=2009-2011
Fields: county, prevalance (combined birth defects per 10,000 live births), cases, live_births, year

Oswego	311.5	(cases=127, live_births=4077, year=2009 2011)
Lewis	330.66	(cases=33, live_births=998, year=2009 2011)
Ontario	364.05	(cases=113, live_births=3104, year=2009 2011)
Onondaga	259.38	(cases=421, live_births=16231, year=2009 2011)
Washington	324.26	(cases=56, live_births=1727, year=2009 2011)
Erie	291.62	(cases=852, live_births=29216, year=2009 2011)
Chautauqua	367.75	(cases=151, live_births=4106, year=2009 2011)
Niagara	219.65	(cases=146, live_births=6647, year=2009 2011)
Tompkins	286.47	(cases=76, live_births=2653, year=2009 2011)
Suffolk	301.77	(cases=1508, live_births=49972, year=2009 2011)
Nassau	270.23	(cases=1160, live_births=42926, year=2009 2011)
Putnam	324.07	(cases=84, live_births=2592, year=2009 2011)
Dutchess	222.25	(cases=180, live_births=8099, year=2009 2011)
Orange	273.55	(cases=404, live_births=14769, year=2009 2011)
Monroe	273.44	(cases=698, live_births=25527, year=2009 2011)
Wayne	280.77	(cases=86, live_births=3063, year=2009 2011)
Cayuga	238.29	(cases=58, live_births=2434, year=2009 2011)
Seneca	206.54	(cases=24, live_births=1162, year=2009 2011)
Cortland	235.06	(cases=35, live_births=1489, year=2009 2011)
Fulton	230.09	(cases=39, live_births=1695, year=2009 2011)
Westchester	256.8	(cases=792, live_births=30841, year=2009 2011)