condition mean min max 4 h after light 2.77488 1.66782 3.43325 8 h after light 1.462018 0.543194 2.51287 12 h after light 1.2178223333333333 0.698662 2.03034 4 h after dark 1.8063133333333334 1.08359 2.22298 8 h after dark 1.86376 1.15297 2.61005 12 h after dark 3.678386666666667 2.60828 5.78396