type 4 inter        -52.91      3.667
type 4 slope    -1.496e-06  5.011e-07
type 2 inter        -62.54       1.03
type 2 slope    -2.767e-06  1.404e-07
type 1 inter        -39.53     0.4382
type 1 slope    +2.987e-07  6.031e-08