condition mean min max 3 h after light 3.1486 2.54552 3.769 6 h after light 2.2107900000000003 1.95426 2.48618 9 h after light 2.42182 2.25405 2.67474 12 h after light 2.199063333333333 1.81518 2.82564 3 h after dark 2.596013333333333 2.3707 3.04087 6 h after dark 3.636816666666667 3.17298 3.89398 9 h after dark 3.3145933333333333 2.73192 3.98637 12 h after dark 3.10287 2.79176 3.48393