condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0736265 0.0 0.147253 4 h after dark 0.126441 0.0 0.252882 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0