CREATE TABLE table_35808 ("Year" FLOAT, "Dates" TEXT, "Venue" TEXT, "Champion" TEXT, "Country" TEXT, "Score" FLOAT, "To par" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT, "Purse  (  $  ) " FLOAT, "Winner's share  ( $ ) " FLOAT)

What year was the margin of victory 9 strokes and the purse under $2,750,000?
SELECT AVG("Year") FROM table_35808 WHERE "Margin of victory" = '9 strokes' AND "Purse ( $ )" < '2,750,000'
SELECT AVG("Year") FROM "table_35808" WHERE "Margin of victory" = '9 strokes' AND "Purse ( $ )" < '2,750,000'