condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 1.388 0.0 2.776 12 h after light 0.0 0.0 0.0 2 h after dark 1.383675 0.0 2.76735 4 h after dark 1.43203 0.0 2.86406 8 h after dark 1.511695 0.0 3.02339 12 h after dark 1.37975 0.0 2.7595