Table: mint_hockey_coins
Columns: year_of_issue
theme
composition
issue_price
mintage

Question: How many years was the issue price $19.95?
SQL: SELECT COUNT("year_of_issue") FROM mint_hockey_coins WHERE "issue_price" = '$19.95'

Question: Which composition has an issue price of $99.00?
SQL: SELECT "composition" FROM mint_hockey_coins WHERE "issue_price" = '$99.00'