CREATE TABLE table_203_11 (id DECIMAL, "title" TEXT, "year" DECIMAL, "peak chart positions\ us" DECIMAL, "peak chart positions\ us r&b" DECIMAL, "peak chart positions\ us rap" DECIMAL, "peak chart positions\ uk" DECIMAL, "certifications" TEXT, "album" TEXT)

what were the only 2 years there were riaa gold certifications ?
SELECT DISTINCT "year" FROM table_203_11 WHERE "certifications" = 'riaa: gold'
SELECT DISTINCT "year" FROM "table_203_11" WHERE "certifications" = 'riaa: gold'