condition mean min max 4 h after light 0.9405183333333333 0.539205 1.21851 8 h after light 1.8172233333333334 0.4794 2.90662 12 h after light 1.5981400000000001 1.04248 2.32761 4 h after dark 2.05759 1.69793 2.33814 8 h after dark 1.5212826666666666 0.856356 2.70931 12 h after dark 0.90293 0.739381 1.06951