condition mean min max 4 h after light 15.0113 14.3201 15.7025 8 h after light 9.014634999999998 8.78066 9.24861 12 h after light 6.928435 6.64854 7.20833 4 h after dark 4.60265 4.25003 5.14363 8 h after dark 3.8604833333333333 3.62231 4.0338 12 h after dark 4.78201 3.84927 5.35205