0000	U.S. City Average
0100	Northeast Region
0200	North Central Region
0300	Southern Region
0400	Western Region
A000	City size - A
A100	Northeast A Size
A101	New York-Northern N.J.-Long Island, NY-N
A102	Philadelphia-Wilmington-Trenton, PA-NJ-D
A103	Boston-Lawrence-Salem, MA-NH
A104	Pittsburgh-Beaver Valley, PA
A105	Buffalo-Niagara Falls, NY
A200	North Central A Size
A207	Chicago-Gary-Lake County, IL-IN-WI
A208	Detroit-Ann Arbor, MI
A209	St. Louis-East St. Louis, MO-IL
A210	Cleveland-Akron-Lorain, OH
A211	Minneapolis-St. Paul, MN-WI
A212	Milwaukee, WI
A213	Cincinnati-Hamilton, OH-KY-IN
A214	Kansas City, MO-KS
A300	South A Size
A311	Washington-Baltimore DC-MD-VA-WV
A315	Washington, DC-MD-VA
A316	Dallas-Fort Worth, TX
A317	Baltimore, MD
A318	Houston-Galveston-Brazoria TX
A319	Atlanta, GA
A320	Miami-Ft. Lauderdale, FL
A321	Tampa, FL
A322	New Orleans, LA
A400	West A Size
A421	Los Angeles-Anaheim-Riverside, CA
A422	San Francisco-Oakland-San Jose, CA
A423	Seattle-Tacoma, WA
A424	San Diego, CA
A425	Portland-Vancouver, OR-WA
A426	Honolulu, HI
A427	Anchorage, AK
A433	Denver-Boulder, CO
B000	City size - B
B100	Northeast B Size
B200	North Central B Size
B300	South B Size
C000	City size - C
C100	Northeast C Size
C200	North Central C Size
C300	South C Size
C400	West C Size
D000	City size - D
D200	North Central D Size
D300	South D Size
X000	City size - B/C
X100	Northeast B/C Size
X200	North Central B/C Size
X300	South B/C Size
X400	West B/C Size