According to TIA, the US telecom industry will grow at an average annual rate of 7.2% in the period 2008-2011, reaching $1.3 trillion in 2011, compared with an average rate of 10%, reaching $3.6 trillion, for the rest of the world. Growth in the US industry will accelerate to 9.3% in 2008 from 8.3% in 2007, partly due to spending on network upgrades and a government spectrum auction.