condition mean min max 0 h after light 0.440458 0.0 0.880916 2 h after light 0.0 0.0 0.0 4 h after light 0.5181 0.0 1.0362 8 h after light 0.0 0.0 0.0 12 h after light 0.861905 0.0 1.72381 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.594495 0.0 1.18899 12 h after dark 0.0 0.0 0.0