CREATE TABLE table_7040 ("Year" FLOAT, "Dates" CLOB, "Champion" CLOB, "Country" CLOB, "Score" CLOB, "Margin of victory" CLOB, "Tournament Location" CLOB, "Purse  (  US$  ) " FLOAT, "Winner's share" FLOAT)

How many winner's shares have ai miyazato as the champion?
SELECT SUM("Winner's share") FROM table_7040 WHERE "Champion" = 'ai miyazato'
SELECT SUM("Winner's share") FROM "table_7040" WHERE "Champion" = 'ai miyazato'