user: Question: What average goals have matches less than 228?
Columns: ['Rank', 'Name', 'Years', 'Matches', 'Goals', 'Goals/Matches']
Types: ['real', 'text', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Joachim Streich', '1969–1985', 378.0, 229.0, 0.61]
SQL:

assistant: SELECT AVG("Goals") FROM "Table" WHERE "Matches" < 228.0;