Table: coins_data
Columns: year
theme
face_value
weight
diameter
mintage
issue_price

Question: What is the Diameter of the Dog Sled (gold variant) Theme coin?
SQL: SELECT "diameter" FROM coins_data WHERE "theme" = 'dog sled (gold variant)'

Question: What is the MIntage after 2006 of the Ruby-Throated Hummingbird Theme coin?
SQL: SELECT MAX("mintage") FROM coins_data WHERE "year" > 2006 AND "theme" = 'ruby-throated hummingbird'

Question: What is the Mintage of the 12.61 g Weight Ruby-Throated Hummingbird?
SQL: SELECT COUNT("mintage") FROM coins_data WHERE "weight" = '12.61 g' AND "theme" = 'ruby-throated hummingbird'

Question: What is the Year of the Coin with an Issue Price of $1089.95 and Mintage less than 900?
SQL: SELECT SUM("year") FROM coins_data WHERE "issue_price" = '$1089.95' AND "mintage" < 900

Question: What is the Theme of the coin with an Issue Price of $89.95?
SQL: SELECT "theme" FROM coins_data WHERE "issue_price" = '$89.95'