Kansas (April 6, 2018)

Michigan (June 17, 2016)

Delaware (November 20, 2015)

Florida (April 7, 2015)

North Dakota (September 5, 2014)

Texas (March 28, 2014)

New Mexico (August 12, 2013)

Wisconsin (May 30, 2013)

Alaska (September 17, 2012)

Nebraska (May 18, 2012)

South Dakota (August 31, 2011)

Iowa (August 17, 2011)

Kansas (March 21, 2011)

Georgia (November 15, 2010)

Ohio (July 7, 2010)

Arkansas (August 12, 2009)