OECD members's mortality caused by road traffic injury (per 100,000 population) was 8.23 in 2019, the latest year in the World Bank's World Development Indicators. That is down 14.65% from 9.64 in 2009 (1.57% a year on average, compounded).
Health · OECD members
OECD members: Mortality caused by road traffic injury (per 100,000 population)
Yearly data from 2000 to 2019, from the World Bank.