human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Year, Total Region, Biggenden, Eidsvold, Gayndah, Monto, Mundubbera, Perry
###Question: Which is the year with Mundubbera being smaller than 2,395, and Biggenden smaller than 1,506?
gpt
SELECT SUM Year FROM table WHERE Mundubbera < 2,395 AND Biggenden < 1,506