condition mean min max 4 h after light 0.3262895 0.275856 0.376723 8 h after light 1.7931849999999998 1.46979 2.11658 12 h after light 3.3042749999999996 2.74407 3.86448 4 h after dark 1.3030150333333335 5.1e-06 2.09763 8 h after dark 0.8353672666666666 1.18e-05 1.36801 12 h after dark 1.52918 0.0 3.38894