user: Question: How many times is the award ceremony laurence olivier award, result is won and the nominee is imelda staunton?
Columns: ['Year', 'Award Ceremony', 'Category', 'Nominee', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2012.0, 'Evening Standard Award', 'Best Musical', 'Best Musical', 'Won']
SQL:

assistant: SELECT COUNT("Year") FROM "Table" WHERE "Award Ceremony" = 'laurence olivier award' AND "Result" = 'won' AND "Nominee" = 'imelda staunton';