condition mean min max 4 h after light 66.2555115 57.008078 75.502945 8 h after light 67.69541100000001 64.522922 70.8679 12 h after light 102.09572299999999 77.079487 127.111959 4 h after dark 63.0032205 58.612557 67.393884 8 h after dark 46.752036000000004 36.506527 56.997545 12 h after dark 59.371007 59.371007 59.371007