type 4 inter           -18      2.501
type 4 slope    -2.147e-06  1.252e-06
type 3 inter        -2.266      1.035
type 3 slope     +5.13e-06  4.601e-07
type 2 inter         -20.6       2.33
type 2 slope    -3.001e-06  1.173e-06
type 1 inter        -11.09       2.62
type 1 slope    +1.358e-06  1.347e-06