condition mean min max 0 h after light 34.18405 33.7002 34.6679 2 h after light 0.694868 0.518351 0.871385 4 h after light 3.18312 2.02881 4.33743 8 h after light 25.60355 24.2215 26.9856 12 h after light 9.30808 5.32676 13.2894 2 h after dark 47.2598 42.7142 51.8054 4 h after dark 62.3576 59.5539 65.1613 8 h after dark 43.5184 42.5145 44.5223 12 h after dark 27.23405 26.1612 28.3069