condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.158745 0.0 0.31749 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 2.170605 0.0 4.34121 2 h after dark 0.0 0.0 0.0 4 h after dark 0.152304 0.0 0.304608 8 h after dark 0.0 0.0 0.0 12 h after dark 0.169151 0.0 0.338302