sealevel,mean_age,2 sigma,var
-119.13,16.89,1.187,0.35224
-102.85,17.29,0.894,0.19981
-107.26,17.43,0.888,0.19714
-105.87,17.45,0.867,0.18792
-107.35,17.55,1.044,0.27248
-110.35,17.69,0.874,0.19097
-107.44,18.72,0.503,0.06325
-110.4,18.78,0.511,0.06528
-122.8,19.49,1.198,0.3588
-123.1,21.52,1.281,0.41024