CREATE TABLE table_52212 ("Year" FLOAT, "Theme" TEXT, "Artist" TEXT, "Mintage" TEXT, "Issue Price" TEXT)

What is the issue price of a Year 2000 coin by artist John Mardon of the Included in Steam Buggy mintage.
SELECT "Issue Price" FROM table_52212 WHERE "Artist" = 'john mardon' AND "Year" = '2000' AND "Mintage" = 'included in steam buggy'
SELECT "Issue Price" FROM "table_52212" WHERE "Artist" = 'john mardon' AND "Mintage" = 'included in steam buggy' AND "Year" = '2000'