type 4 inter        -16.78     0.6477
type 4 slope    -1.081e-06  3.308e-07
type 2 inter        -21.56     0.2378
type 2 slope    -3.301e-06  1.199e-07
type 1 inter        -14.89     0.1346
type 1 slope    -4.035e-07   7.27e-08