condition mean min max 2 h after light 7.117240000000001 6.00921 8.40853 6 h after light 6.1875816666666665 5.38522 7.19051 10 h after light 4.994615 2.97383 6.41759 14 h after light 5.561016666666666 3.86859 7.85763 18 h after light 6.5763766666666665 5.31901 8.79716 2 h after dark 6.700145 5.28742 9.12278