type 4 inter         +14.2      2.373
type 4 slope    +1.473e-06  3.244e-07
type 2 inter        +7.898        0.4
type 2 slope    +2.402e-06  5.496e-08
type 1 inter        +9.802     0.3129
type 1 slope    +2.081e-06  3.664e-08