condition mean min max 0 h after light 9.43504 7.06838 11.8017 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 1.16158 0.0 2.32316 8 h after dark 3.48074 0.0 6.96148 12 h after dark 4.60342 0.0 9.20684