condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.080001 0.0 0.240003 9 h after light 0.0 0.0 0.0 12 h after light 0.06407 0.0 0.19221 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0