condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.17476183333333334 0.0 0.742664 18 h after light 0.0 0.0 0.0 2 h after dark 0.11748116666666668 0.0 0.410882