user: Question: What is the total time for One South Broad?
Columns: ['Rank', 'Name', 'Height ft (m)', 'Floors', 'Year', 'Address']
Types: ['text', 'text', 'text', 'real', 'real', 'text']
Sample row: ['1', 'Comcast Center', '975 (297)', 58.0, 2008.0, '1701 John F. Kennedy Blvd']
SQL:

assistant: SELECT SUM("Year") FROM "Table" WHERE "Name" = 'One South Broad';