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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 6.971m to data values 1956-1959 to refer to RLR
Add 6.504m to data values 1960-1961 to refer to RLR
Add 6.971m to data values 1961-1962 to refer to RLR
Add 6.504m to data values 1962-1963 to refer to RLR
Add 6.904m to data values 1978-1980 to refer to RLR
Add 6.504m to data values 1981 onwards to refer to RLR
RLR is 9.644m below primary benchmark RN 7