user: Question: What is the sum of poverty (2009) HPI-1 % when the GDP (PPP) (2012) US$ per capita of 11,284?
Columns: ['Country', 'Human development (2012) HDI', 'GDP (PPP) (2012) US$ per capita', 'Real GDP growth (2011) %', 'Income inequality (2011) Gini', 'Poverty (2009) HPI-1 %', 'Extreme poverty (2011) <1.25 US$ %', 'Literacy (2010) %', 'Life expectancy (2011) Years', 'Murder (2012) Rate per 100,000', 'Peace (2012) GPI']
Types: ['text', 'real', 'text', 'text', 'text', 'real', 'text', 'real', 'real', 'text', 'real']
Sample row: ['Argentina', 0.811, '18,709', '8.9', '45.8', 3.7, '0.9', 98.0, 76.0, '0 3.4', 1.763]
SQL:

assistant: SELECT SUM("Poverty (2009) HPI-1 %") FROM "Table" WHERE "GDP (PPP) (2012) US$ per capita" = '11,284';