CREATE TABLE "table1_2508175_1" (
  "country" text,
  "annual_co2_emissions_in_thousands_of_metric_tons" real,
  "gdp_current_in_billions_of_us_dollars" text,
  "gdp_per_emissions_in_us_dollars_per_ton" real,
  "gdp_ppp_in_billions_of_current_international_dollars" text,
  "ppp_gdp_per_emissions_in_international_dollars_per_ton" real
);

Question: When the gdp (ppp, in billions of current international dollars) is 7.93, what is the maximum ppp gdp per emissions (in international dollars per ton)?
SQL: SELECT MAX("ppp_gdp_per_emissions_in_international_dollars_per_ton") FROM "table1_2508175_1" WHERE "gdp_ppp_in_billions_of_current_international_dollars"='7.93';

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)?
SQL: SELECT MAX("annual_co2_emissions_in_thousands_of_metric_tons") FROM "table1_2508175_1" WHERE "gdp_per_emissions_in_us_dollars_per_ton"=3903;

Question: when the annual co2 emissions (in thousands of metric tons) is 1811, what is the country?
SQL: SELECT "country" FROM "table1_2508175_1" WHERE "annual_co2_emissions_in_thousands_of_metric_tons"=1811;

Question: when the gdp (current, in billions of us dollars) is 162.50, what is the GDP?
SQL: SELECT MAX("gdp_per_emissions_in_us_dollars_per_ton") FROM "table1_2508175_1" WHERE "gdp_current_in_billions_of_us_dollars"='162.50';