U.S. electricity usage per capita; hasn't changed much in 15 years:
Next: Primary energy usage is all energy used -- for electricity, manufacturing, transportation, agriculture, flushing the toilet, feeding your cats, and everything else For the US as a whole it's now about 3.32 terrawatts (trillion watts; annualized) -- that is, we use 3.32e12 Joules of energy every second, averaged over the course of a year (FYI: 1 kilowatt-hour = 3.6 megajoules), down from a peak of 3.39 TW in December 2007. (The graph below is per capita.) These numbers are decreasing only slowly -- about 0.2% per year, on average -- and then (for the most part) only in recessions, as in the first half of the 1980s, and the 2000s just as Bush Jr took office, and after the financial crisis in 2008:
The next graph is primary energy intensity -- how much energy it takes to produce a dollar of GDP (goods and services). I deflated the GDP numbers with the GDP Implicit Price Deflator; basically the same as the Consumer Price Index. "2014-dollars" are as of Nov 2014.
Energy efficiency has given us a factor of 2.8 in energy productivity since 1973 (42 years). And we're spending most of that by consuming more energy (see graph 2, above) -- the essence of Jevons Paradox.
All the data are from US EIA and the FRED database from the Federal Reserve in St Louis. You can look them up yourself.