State tax changes: During the study period, the following states did not have any changes in their state taxes: AK, GA, HI, ID, ME, MI, MO, MT, NE, ND, VA, and WY. The following states increased their cigarette excise taxes once during the study period: AL, AZ, AR, CA, CO, FL, IN, IA, KS, MD, MS, NV, OH, OK, SC, SD, TN, TX, UT, WA, and WV. IL, KY, LA, MA, NJ, NM, NY, NC, PA, and WI increased cigarette excise taxes two times during the study period. DE increased cigarette excise taxes three times during the study period. MN, NH, OR, and RI increased cigarette taxes four times during the study period. CT and VT increased cigarette excise taxes five times during the study period. DC increased cigarette excise taxes 10 times during the study period. NH decreased cigarette excise taxes once during the study period. The federal cigarette excise tax increased from $0.39 to $1.01 per pack in April 2009.

AK, Alaska; AL, Alabama; AR, Arkansas; AZ, Arizona; CA, California; CO, Colorado; CT, Connecticut; DC, District of Columbia; DE, Delaware; FL, Florida; GA, Georgia; HI, Hawaii; IA, Iowa; ID, Idaho; IL, Illinois; IN, Indiana; KS, Kansas; KY, Kentucky; LA, Louisiana; MA, Massachusetts; MD, Maryland; ME, Maine; MI, Michigan; MN, Minnesota; MO, Missouri; MS, Mississippi; MT, Montana; NC, North Carolina; ND, North Dakota; NE, Nebraska; NH, New Hampshire; NJ, New Jersey; NM, New Mexico; NV, Nevada; NY, New York; OH, Ohio; OK, Oklahoma; OR, Oregon; PA, Pennsylvania; RI, Rhode Island; SC, South Carolina; SD, South Dakota; TN, Tennessee; TX, Texas; UT, Utah; VA, Virginia; VT, Vermont; WA, Washington; WI, Wisconsin; WV, West Virginia; WY, Wyoming.