2004 Test 2005 Test
2004 Data New Jersey (Adelphia) New Jersey (Salem) 2005 Data New Jersey (Salem)
2005 Data Kentucky Maryland New Jersey (Adelphia) New Jersey (Salem) North Carolina 2007 Data New Jersey (Salem)
2006 Data Kentucky Maryland New Jersey (Adelphia) New Jersey (Salem) North Carolina
2007 Test
2007 Data Kentucky New Jersey (Adelphia) New Jersey (Salem) North Carolina
2008 Data California Illinois Kentucky New Jersey (Adelphia) New Jersey (Salem) North Carolina Tennessee Virginia Washington
2009 Data California Illinois Kentucky New Jersey (Adelphia) New Jeresey (Salem) North Carolina Tennessee Viriginia Washington
