CREATE TABLE table_65552 ("Year" FLOAT, "Game" TEXT, "Genre" TEXT, "Platform ( s ) " TEXT, "Developer ( s ) " TEXT)

What year had Third-Person Shooter?
SELECT AVG("Year") FROM table_65552 WHERE "Genre" = 'third-person shooter'
SELECT AVG("Year") FROM "table_65552" WHERE "Genre" = 'third-person shooter'