user: Question: How many skip's are listed for 30 ends won? 
Columns: ['Skip (Club)', 'W', 'L', 'PF', 'PA', 'Ends Won', 'Ends Lost', 'Blank Ends', 'Stolen Ends']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Andrea Kelly (CWC)', 7.0, 0.0, 48.0, 21.0, 28.0, 18.0, 16.0, 9.0]
SQL:

assistant: SELECT COUNT("Skip (Club)") FROM "Table" WHERE "Ends Won" = 30.0;