When the stamp duty reserve tax is 3,669 what is the percentage over gdp?
CREATE TABLE "revenues_from_stamp_duties" (
  "year" text,
  "stamp_duty_reserve_tax" text,
  "standard_stamp_duty" text,
  "standard_duties_total_revenue_in_million" real,
  "over_total_tax_revenue_in_pct" text,
  "over_gdp_in_pct" text
);
SELECT "over_gdp_in_pct" FROM "revenues_from_stamp_duties" WHERE "stamp_duty_reserve_tax"='3,669';