condition mean min max 0 h after light 15.1076 14.2699 15.9453 2 h after light 9.851135 8.14287 11.5594 4 h after light 7.673995 6.90537 8.44262 8 h after light 9.681915 9.66351 9.70032 12 h after light 21.81745 18.6861 24.9488 2 h after dark 24.8216 21.9437 27.6995 4 h after dark 25.0026 23.9636 26.0416 8 h after dark 20.909100000000002 18.8947 22.9235 12 h after dark 15.72 12.3401 19.0999