user: Question: What is the sum of every REG GP that peter andersson played as a pick# less than 143?
Columns: ['Rd #', 'Pick #', 'Player', 'Team (League)', 'Reg GP', 'Pl GP']
Types: ['real', 'real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 22.0, 'Jordan Schroeder', 'University of Minnesota ( WCHA )', 31.0, 0.0]
SQL:

assistant: SELECT SUM("Reg GP") FROM "Table" WHERE "Player" = 'peter andersson' AND "Pick #" < 143.0;