user: Question: What is the mean number of caps for Ryota Asano?
Columns: ['Player', 'Position', 'Date of Birth (Age)', 'Caps', 'Club/province']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Takahiro Sugiura', 'Prop', '4 October 1983', 1.0, 'Fukuoka']
SQL:

assistant: SELECT AVG("Caps") FROM "Table" WHERE "Player" = 'Ryota Asano';