condition mean min max 0 h after light 2.15788 2.14167 2.17409 4 h after light 2.5217650000000003 2.39984 2.64369 8 h after light 2.5293099999999997 2.36602 2.6926 4 h after dark 2.33603 2.09965 2.57241 8 h after dark 2.29253 2.05129 2.53377 12 h after dark 2.237205 2.19468 2.27973