user: Question: What is the sum of all total values for Switzerland?
Columns: ['Rank', 'Name', 'Nation', 'Placings', 'Total']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Karol Kennedy / Peter Kennedy', 'United States', '15', 96.07]
SQL:

assistant: SELECT SUM("Total") FROM "Table" WHERE "Nation" = 'Switzerland';