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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 11.659m to data values 1887-1936 to refer to RLR
Add 5.037m to data values 1937-1999 to refer to RLR
Add 0.100m to data values 2000 onwards to refer to RLR
RLR is 10.100m below primary benchmark BM c