type 4 inter        -18.57     0.5439
type 4 slope     -2.04e-06  2.825e-07
type 2 inter        -22.43     0.2613
type 2 slope    -3.798e-06  1.339e-07
type 1 inter        -14.31     0.1223
type 1 slope    -1.073e-07  6.842e-08