condition mean min max 4 h after light 42.0403 37.3853 46.6953 8 h after light 27.2008 24.3889 30.0127 12 h after light 40.360600000000005 38.9849 41.7363 4 h after dark 63.40683333333333 60.2094 65.6107 8 h after dark 67.66586666666667 65.1621 72.0763 12 h after dark 55.95943333333334 53.8617 57.713