我在MINNESOTA住, 每月700 USD, FOOD AT HOME是可信的. http://minnesota.cbslocal.com/2010/11/10/food-costs-on-the-rise/
CPI也可以从政府渠道获得. http://www.bls.gov/news.release/cpi.nr0.htm
Percent changes in CPI
Un-adjusted 12-mos. ended Oct. 2010
Food 1.4
Food at home 1.4
Food away from 1.4
Energy 5.9
Energy commodities 9.9
Gasoline (all types) 9.5
Fuel oil 14.5
Energy services 0.9
Electricity 0.6
Utility (piped) gas service 1.9
Commodities less food and energy commodities .1
New vehicles .4
Used cars and trucks 8.6
Apparel -1.2
Medical care commodities 2.5
Services less energy services 0.8
Shelter -0.3
Transportation services 2.8
Medical care services 3.6