CREATE TABLE table_50529 ("Year" TEXT, "Winner" TEXT, "Runner-up" TEXT, "Score" TEXT, "Venue" TEXT)

When is the winner panathinaikos, the runner-up olympiacos and the venue nikos goumas stadium?
SELECT "Year" FROM table_50529 WHERE "Winner" = 'panathinaikos' AND "Runner-up" = 'olympiacos' AND "Venue" = 'nikos goumas stadium'
SELECT "Year" FROM "table_50529" WHERE "Runner-up" = 'olympiacos' AND "Venue" = 'nikos goumas stadium' AND "Winner" = 'panathinaikos'