For example, World Bank survey data suggest that India’s per capita household expenditure has grown by only 1.5% annually since the early 1990’s, implying that the average Indian spent $720 in 2010. But national-income-accounts data show a 4.5% annual rise, on average, over the last two decades, translating into per capita expenditure of $1,673 in 2010 – roughly 2.5 times higher than the Bank’s estimate.