Table: african_gdp_per_capita
Columns: gdp_ppp_per_capita_2010_african_world_rank_2010
nation
gdp_by_agriculture_2010
gdp_by_industry_2010
gdp_by_services_2010
total_gdp_ppp_2010_african_world_rank_2010
gdp_real_growth_rate_2010

Question: Gdp per capita for malawi
SQL: SELECT "gdp_ppp_per_capita_2010_african_world_rank_2010" FROM african_gdp_per_capita WHERE "nation" = 'Malawi'