user: ### NOW ANSWER:
Question: What is the power of the unit built after 1995?
Columns: ['Type', 'Numbers', 'Year built', 'Quantity built', 'Power (horsepower)', 'Max Speed (km/h)']
Types: ['text', 'text', 'real', 'text', 'real', 'real']
Sample row: ['RHN', '1011-1048 (power cars) 11-48 (trailer cars)', 1967.0, '38+38', 220.0, 90.0]
SQL:

assistant: SELECT SUM("Power (horsepower)") FROM "Table" WHERE "Year built" > 1995.0;