The main expense is rent/housing for most people (32% of expenditures according to the BLS which is in line with my own budget). On my rental property in the US, I increased rent from 1350 to 1600 in the last 6 years : 2.8% a year. And that is mainly because I started with a low rent when I left the US because at first I was renting to a friend.
To double check, I looked at the rent of the first place I rented in 1996 for $850: 1br at Colony Oaks in North Brunswick, NJ. It now rents for $1270; an increase of 2.4% a year.
My first car, a chevy cavalier cost me 12k in 1996. I looked at the last cavalier issued in 2005 ... the same price. Then I looked at more recent entry-level cars, like the sparks and it is more or less the same price still. So when the BLS says that the annual increase has been 0.7% in the last 10 years, that seems about right to me.
Away from home food is about 5% of the CPI. Has restaurant prices doubled in the last 10 years? Not from what I remember. Lets look at the Big Mac Index that is reported by The Economist. In 2002, a Big Mac cost $2.71 in average in the USA. It now cost $4.33 so so it was about +60% (4.8% a year) in that timeframe. The BLS has food inflation at 2.9% during that same period so they may be low on that account.
http://bigmacindex.org/bmi-data-text-format.htmlGas is 5% of expenditure. Pump price was 1.45 in 2003 and is now 3.69 so an increase of 9.5% a year vs 8.9% from the BLS
So from my not-very-scientific analysis
Housing inflation (40% of basket): about 2.5% vs BLS at 2.0%
Car price inflation (5% of basket): about 0% vs BLS at 0.7%
Restaurant inflation (5% of basket): about 4.8% vs BLS at 2.9%
Gaz (5% of basket): about 9.5% vs BLS 8.9%
Weighted average difference: i am about 0.5% higher than the BLS
So this is nothing like the 5-10% that you often see in the far-left/far-right news channel. Looks to me like gas is the only thing that went up by that much but I would not know because I take public transportation or bike or walk to work so that gas is less than 0.5% of mu budget.
Anyway, if anyone wants to continue the analysis line by line using the last 10 years as a baseline so that we can show a complete picture, knock yourself out.