user: Question: What is the total of the year with a Team of Johnson City Yankees, and a Finish of 6th?
Columns: ['Year', 'Team', 'League', 'Record', 'Finish', 'Organization']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1968.0, 'Johnson City Yankees', 'Appalachian League', '39-32', '3rd', 'New York Yankees']
SQL:

assistant: SELECT SUM("Year") FROM "Table" WHERE "Team" = 'Johnson City Yankees' AND "Finish" = '6th';