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_91 ( avg_finish INTEGER, year VARCHAR, starts VARCHAR )

### Question ###
in 2007, what is the avg finish that had a start less than 1?

### Accurate SQL ###

SELECT SUM(avg_finish) FROM table_name_91 WHERE year = 2007 AND starts < 1