condition mean min max 0 h after light 34.3429 31.1781 37.5077 2 h after light 19.7553 19.098 20.4126 4 h after light 15.7773 15.457 16.0976 8 h after light 10.597545 9.13289 12.0622 12 h after light 12.63275 11.7404 13.5251 2 h after dark 11.6597 11.5351 11.7843 4 h after dark 10.8748 10.0702 11.6794 8 h after dark 23.2847 22.8894 23.68 12 h after dark 35.36635 31.9676 38.7651