HC Deb 11 July 1972 vol 840 c307W
Mr. Gwynoro Jones

asked the Secretary of State for the Environment what was the percentage relationship to the previous year in the number of miles of motorway completed in Great Britain in each year from 1960 to 1971.

Mr. Speed

Following are the mileages of motorway newly opened to traffic in each year:

1959 73
1960 39
1961 22
1962 49
1963 95
1964 14
1965 76
1966 63
1967 106
1968 49
1969 56
1970 114
1971 232

I see no value in expressing figures of this type as percentage relationships.