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 3.495m to data values for 1981 to refer to RLR(1992)
Add 3.493m to data values 1982-1987 to refer to RLR(1992)
Add 3.795m to data values 1988 onwards to refer to RLR(1992)
RLR (1992) is 12.9m below TGBM NZ 8986 1141