05 NW - ID, MT, OR, WA, WY
06 SW - AZ, CA, CO, NM, NV, UT
13 MW - IA, ID, IL, KS, KY, MI, MN, MO, ND, NE, OH, SD, WI
13 S  - AL, AR, FL, GA, LA, MS, NC, OK, SC, TN, TX, VA, WV
12 NE - CT, DC, DE, MA, MD, ME, NH, NJ, NY, PA, RI, VT
02 Other - AK, HI, the rest
51