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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 5.535m to data values 1959-1972 to refer to RLR
Add 6.057m to data values 1973-1992 to refer to RLR
Add 5.875m to data values 1994-1997 to refer to RLR
Add 5.700m to data values 2000-2002 to refer to RLR
Add 5.850m to data values 2003 onwards to refer to RLR
RLR is 10.053m below primary benchmark PN 1