Table:
text: Börje Jansson
Grand Prix motorcycle racing results
Grand Prix motorcycle racing results
Year_ Class_ Team Points Rank_ Wins
1969 125cc Maico 4 40th 0
1969 250cc Yamaha 45 5th 0
1970 125cc Maico 62 3rd 0
1970 250cc Yamaha 34 5th 0
1971 125cc Maico 64 3rd 0
1971 250cc Yamaha 9 21st 0
1972 50cc Jamathi 10 12th 0
1972 125cc Maico 78 4th 2
1972 250cc Yamaha 36 8th 1
1973 125cc Maico 64 4th 1
1973 250cc Yamaha 12 18th 0

Question: What was Börje Jansson's most wins in 1971 in the 250cc class?

Question: What was the earliest year with fewer than 45 points for the 21st-place Yamaha team under Börje Jansson?