CREATE TABLE table_23099 ("Year" TEXT, "Marriages between men" FLOAT, "Marriages between women" FLOAT, "Same-sex marriages" FLOAT, "Total marriages" FLOAT, "% same-sex marriages" TEXT)

What is the % of same-sex marriages for the year of 2011?
SELECT "% same-sex marriages" FROM table_23099 WHERE "Year" = '2011'
SELECT "% same-sex marriages" FROM "table_23099" WHERE "Year" = '2011'