The steady reduction in interest rates over the past two years has reduced the proportion of income that households are committing to interest payments on debts, but the overall household debt burden has only eased a little.Household finance data released by the Reserve Bank yesterday shows that since November 2011, when the RBA started cutting rates, the ratio of interest payments to disposable income as a proportion of total household debt has fallen from 11.2 per cent to 9.5 per cent.The ratio of interest payments on housing debt to disposable income fell from 9.3 per cent to 7.8 per cent over the same period.However, on other measures the household debt burden remains high. The ratio of debt to assets has eased from 18.2 per cent to 17.6 per cent. In the late 1980s, before the consumer debt boom, the debt-to-assets ratio was below 10 per cent.The ratio of total household debt to disposable income has eased from 148.5 per cent to 147.3 per cent over the past two years.