condition mean min max 4 h after light 3.247775 2.26502 4.23053 8 h after light 1.73103 1.72717 1.73489 12 h after light 1.46902 1.22414 1.7139 4 h after dark 1.5071949999999998 1.28589 1.7285 8 h after dark 2.758615 2.54085 2.97638 12 h after dark 5.55358 5.08092 6.02624