condition mean min max 2 h after light 1.3886336666666668 0.786722 1.77616 6 h after light 1.6725750000000001 1.15433 2.40565 10 h after light 1.50363 1.09751 2.14639 14 h after light 1.0672733333333333 0.364924 1.58204 18 h after light 1.2305081666666666 0.922869 1.52324 2 h after dark 2.93013 2.18882 3.62394