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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 3.745m to data values 1932-1965 to refer to RLR
Add 3.770m to data values 1966 onwards to refer to RLR
RLR is 11.000m below primary benchmark BM 1615 / 1195