user: Question: when the gdp per emissions (in us dollars per ton) is 3903, what is the maximum annual co2 emissions (in thousands of metric tons)?
Columns: ['Country', 'Annual CO2 emissions (in thousands of metric tons)', 'GDP (current, in billions of US dollars)', 'GDP per Emissions (in US dollars per ton)', 'GDP (PPP, in billions of current international dollars)', 'PPP GDP per Emissions (in international dollars per ton)']
Types: ['text', 'real', 'text', 'real', 'text', 'real']
Sample row: ['Chad', 396.0, '6.31', 15924.0, '15.40', 38881.0]
SQL:

assistant: SELECT MAX("Annual CO2 emissions (in thousands of metric tons)") FROM "Table" WHERE "GDP per Emissions (in US dollars per ton)" = 3903.0;