Indicate the release year of the game with more than 200000 sales in Japan.
more than 200000 sales refers to SUM(num_sales) > 2; Japan refers to region_name = 'Japan';
SELECT DISTINCT T3.release_year FROM region AS T1 INNER JOIN region_sales AS T2 ON T1.id = T2.region_id INNER JOIN game_platform AS T3 ON T2.game_platform_id = T3.id WHERE T2.num_sales * 100000 > 200000 AND T1.region_name = 'Japan'