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If the image above appears blurry, or you would like to see a larger image, please view the full-sized image of the RLR diagram.
Add 3.275m to data values for 1943 to refer to RLR
Add 3.275m to data values for 1943 to refer to RLR
Add 3.275m to data values for 1963 to refer to RLR
Add 3.275m to data values 1963 onwards to refer to RLR
RLR is 12.500m below primary benchmark BM NGF NPQ 35