Table: royal_canadian_mint_coins_2
Columns: year
theme
artist
mintage
issue_price

Question: What is the latest year that has an n/a mintage and an Issue Price of $89.95?
SQL: SELECT MAX("year") FROM royal_canadian_mint_coins_2 WHERE "mintage" = 'n/a' AND "issue_price" = '$89.95'

Question: What mintage for the royal canadian mint engravers before 2008 that has an issue price of $102.95?
SQL: SELECT "mintage" FROM royal_canadian_mint_coins_2 WHERE "artist" = 'royal canadian mint engravers' AND "year" < 2008 AND "issue_price" = '$102.95'

Question: What theme is associated with a year before 2006 and Issue Price of $25.22?
SQL: SELECT "theme" FROM royal_canadian_mint_coins_2 WHERE "year" < 2006 AND "issue_price" = '$25.22'