In a bid to become more self-sufficient, Australia has also made efforts to increase the number of locally-trained doctors and has provided incentives for doctors to relocate to areas of need. Other policy levers Australia has experimented with include task delegation among health professionals, and the use of technology to facilitate access to health services for people in the most remote parts of the country. There are on average three Australians for every square kilometre of land, a density similar to Iceland and Canada (OECD, 2009). As a result, the spatial concentration of population in Australia is the highest in the OECD - almost two-thirds of the population live in 10% of the regions with the largest populations.