condition mean min max 2 h after light 1.2457573333333334 0.72858 1.79719 6 h after light 1.1255595 0.575939 1.42851 10 h after light 1.1788976666666666 0.604734 1.58388 14 h after light 1.4839925 0.763395 2.14963 18 h after light 1.5606135 0.877211 2.21535 2 h after dark 1.721205 1.12169 2.45326