Offsets between NZGeoid05 and major levelling datums (metres)

datum                 offset    standard_deviation

auckland_1964         0.4955    0.0690
bluff_1955            0.3734    0.0519
dunedin-bluff_1960    0.2548    0.0763
dunedin_1958          0.4828    0.1644
gisborne_1926         0.5845    0.0867
lyttelton_1937        0.3470    0.0960
moturiki_1953         0.3224    0.0691
napier_1962           0.3201    0.0509
nelson_1955           0.2586    0.0804
one-tree-point_1964   0.2553    0.0596
stewart-island_1977   0.3951    0.1150
taranaki_1970         0.4542    0.0674
wellington_1953       0.5055    0.0398
