condition mean min max 0 h after light 5.98887 5.7873 6.19044 2 h after light 5.63507 4.75529 6.51485 4 h after light 4.31926 3.67277 4.96575 8 h after light 6.126995 5.04717 7.20682 12 h after light 13.652149999999999 12.4279 14.8764 2 h after dark 15.5484 15.4994 15.5974 4 h after dark 11.87795 11.6997 12.0562 8 h after dark 10.156695 9.71129 10.6021 12 h after dark 7.84937 7.52574 8.173