Question: What is the lowest Winner's share (¥) in 2011?
SQL: SELECT MIN("Winner's share (¥)") FROM "2-17821655-1" WHERE "Year" = 2011.0;

Question: How much is the purse worth (¥) after 2012?
SQL: SELECT SUM("Purse (¥)") FROM "2-17821655-1" WHERE "Year" > 2012.0;