Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_18 (year INTEGER, theme VARCHAR, mintage VARCHAR)

### Question ###
What is the earliest year when the 25th Anniversary Loonie was the theme, and the mintage was less than 35,000?

### Accurate SQL ###

SELECT MIN(year) FROM table_name_18 WHERE theme = "25th anniversary loonie" AND mintage < 35 OFFSET 000