condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0476732 0.0 0.0953464 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 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.04776085 0.0 0.0955217 12 h after dark 0.0 0.0 0.0