In a number of countries, government spending on cash transfers to working-age individuals and families has remained more or less constant over the entire period (Austria, Czech Republic, France, Germany, Greece, Japan, Korea, Portugal, Spain), despite sometimes sizable trend increases in total spending-to-GDP ratios. As discussed above, public spending on income support for the non-elderly has, relative to GDP, dropped significantly in a few countries. A similar comparison can be made on the revenue side. However, while OECD Revenue Statistics indentify the revenue components that are most relevant in the context of studying income redistribution (personal income taxes and social contributions), it is not possible to approximate the share of these taxes that are paid by “non-elderly” households only.