In England R is highest in the north-east and Yorkshire where it is estimated to be 0.8
Standfirst ...
unknown title
0
0.2
0.4
0.6
0.8
North-east and Yorkshire
0.8
South-west
0.76
England
0.75
North-west
0.73
East of England
0.71
South-east
0.71
Midlands
0.68
London
0.4