user: Question: What is the latest year that has an N/A mintage and an Issue Price of $89.95?
Columns: ['Year', 'Theme', 'Artist', 'Mintage', 'Issue Price']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2002.0, 'Centre Ice Coin', 'R.R. Carmichael', '25,000', 'N/A']
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Mintage" = 'N/A' AND "Issue Price" = '$89.95';