condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 3.254715 0.0 6.50943 8 h after light 18.821649999999998 15.2411 22.4022 4 h after dark 1.084975 0.0 2.16995 8 h after dark 4.371445 0.0 8.74289 12 h after dark 2.197785 0.0 4.39557