Madagascar's GDP in 2015 was estimated at US$9.98 billion, with a per capita GDP of $411.82. Approximately 69 percent of the population lives below the national poverty line threshold of one dollar per day. During 2011–15, the average growth rate was 2.6% but was expected to have reached 4.1% in 2016, due to public works programs and a growth of the service sector. The agriculture sector constituted 29 percent of Malagasy GDP in 2011, while manufacturing formed 15 percent of GDP. Madagascar's other sources of growth are tourism, agriculture and the extractive industries. Tourism focuses on the niche eco-tourism market, capitalizing on Madagascar's unique biodiversity, unspoiled natural habitats, national parks and lemur species. An estimated 365,000 tourists visited Madagascar in 2008, but the sector declined during the political crisis with 180,000 tourists visiting in 2010. However, the sector has been growing steadily for a few years; In 2016, 293,000 tourists landed in the African island with an increase of 20% compared to 2015; For 2017 the country has the goal of reaching 366,000 visitors, while for 2018 government estimates are expected to reach 500,000 annual tourists.