Indonesia has a mixed economy in which both the private sector and government play vital roles. As the only G20 member state in Southeast Asia, the country has the largest economy in the region and is classified as a newly industrialised country. Per a 2021 estimate, it is the world's 16th largest economy by nominal GDP and 7th in terms of GDP at PPP, estimated to be US$1.159 trillion and US$3.507 trillion, respectively. Per capita GDP in PPP is US$12,882, while nominal per capita GDP is US$4,256. The debt ratio to GDP is 29.2%. The services are the economy's largest sector and account for 43.4% of GDP (2018), followed by industry (39.7%) and agriculture (12.8%). Since 2009, it has employed more people than other sectors, accounting for 47.7% of the total labour force, followed by agriculture (30.2%) and industry (21.9%).