user: Question: What was the average year when Shri. Shambu Nath Khajuria won the padma shri awards?
Columns: ['Year', 'Name', 'Field', 'State', 'Country']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1998.0, 'Cardinal Antony Padiyara', 'Social Work', 'Kerala', 'India']
SQL:

assistant: SELECT AVG("Year") FROM "Table" WHERE "Name" = 'Shri. Shambu Nath Khajuria';