user: ### NOW ANSWER:
Question: What is the number of Population 2001 Census that has 476815 in Population 1991 Census?
Columns: ['District', 'District Headquarters', 'Area (km 2 .)', 'Population 1991 Census', 'Population 2001 Census']
Types: ['text', 'text', 'real', 'real', 'real']
Sample row: ['Balangir', 'Balangir', 6575.0, 1230938.0, 1335760.0]
SQL:

assistant: SELECT SUM("Population 2001 Census") FROM "Table" WHERE "Population 1991 Census" = 476815.0;