user: Question: WHAT YEAR HAD 5 TOTAL MATCHES?
Columns: ['Year', 'Total matches', 'Total W-L-H', 'Singles W-L-H', 'Points won', 'Points %']
Types: ['text', 'real', 'text', 'text', 'real', 'text']
Sample row: ['Career', 21.0, '6-10-5', '2-2-2', 8.5, '40.5%']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Total matches" = 5.0;