[['year', 'class', 'team', 'points', 'wins'], ['1949', '350cc', 'velocette', '0', '0'], ['1949', '500cc', 'triumph', '0', '0'], ['1950', '350cc', 'velocette', '0', '0'], ['1950', '500cc', 'norton', '0', '0'], ['1951', '250cc', 'velocette', '6', '0'], ['1951', '350cc', 'velocette', '0', '0'], ['1951', '500cc', 'bsa', '0', '0'], ['1952', '250cc', 'moto guzzi', '4', '0'], ['1952', '350cc', 'velocette', '0', '0'], ['1952', '500cc', 'norton', '0', '0'], ['1953', '250cc', 'moto guzzi', '4', '0'], ['1953', '350cc', 'ajs', '0', '0'], ['1953', '500cc', 'matchless', '0', '0'], ['1954', '250cc', 'moto guzzi', '15', '1'], ['1954', '350cc', 'ajs', '0', '0'], ['1954', '500cc', 'ajs', '0', '0'], ['1955', '250cc', 'moto guzzi', '6', '0'], ['1955', '350cc', 'ajs', '0', '0'], ['1955', '500cc', 'matchless', '0', '0'], ['1956', '125cc', 'mv agusta', '0', '0'], ['1956', '250cc', 'moto guzzi', '5', '0'], ['1956', '350cc', 'moto guzzi', '0', '0'], ['1957', '125cc', 'mv agusta', '0', '0'], ['1957', '250cc', 'moto guzzi', '4', '0'], ['1957', '350cc', 'moto guzzi', '0', '0'], ['1957', '500cc', 'moto guzzi', '0', '0'], ['1958', '125cc', 'mondial', '1', '0'], ['1958', '250cc', 'mondial', '2', '0'], ['1958', '350cc', 'ajs', '0', '0'], ['1958', '500cc', 'ajs', '0', '0'], ['1959', '125cc', 'nsu', '1', '0'], ['1959', '125cc', 'ducati', '1', '0'], ['1959', '350cc', 'ajs', '0', '0'], ['1959', '500cc', 'ajs', '0', '0'], ['1961', '125cc', 'ducati', '0', '0'], ['1961', '250cc', 'moto guzzi', '0', '0'], ['1961', '350cc', 'moto guzzi', '0', '0'], ['1961', '500cc', 'matchless', '0', '0'], ['1962', '250cc', 'moto guzzi', '19', '1'], ['1962', '350cc', 'moto guzzi', '1', '0'], ['1962', '500cc', 'moto guzzi', '0', '0']]
between 1949 and 1951 Arthur Wheeler had an average of 6 Point
between [ENT] and [ENT] [ENT] had an average of 6 [ENT]