user: Question: What year was the margin of victory 9 strokes and the purse under $2750000?
Columns: ['Year', 'Dates', 'Venue', 'Champion', 'Country', 'Score', 'To par', 'Margin of victory', 'Runner(s)-up', 'Purse ( $ )', "Winner's share ($)"]
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text', 'text', 'text', 'real', 'real']
Sample row: [2013.0, 'Aug 1–4', 'Old Course at St Andrews', 'Stacy Lewis', 'United States', 280.0, '–8', '2 strokes', 'Na Yeon Choi Hee Young Park', 2750000.0, 402583.0]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Margin of victory" = '9 strokes' AND "Purse ( $ )" < 2750000.0;