condition mean min max 0 h after light 0.1617725 0.0 0.323545 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0877355 0.0 0.175471 12 h after dark 0.0863415 0.0 0.172683