user: Question: How many years does simon baker appear as a nominee?
Columns: ['Year', 'Award', 'Category', 'Nominee', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2008.0, 'Laurence Olivier Award', 'Best New Musical', 'Best New Musical', 'Nominated']
SQL:

assistant: SELECT COUNT("Year") FROM "Table" WHERE "Nominee" = 'simon baker';