condition mean min max 0 h after light 3.543465 3.37599 3.71094 2 h after light 3.78078 2.9845 4.57706 4 h after light 2.8712299999999997 2.71537 3.02709 8 h after light 3.2858799999999997 3.02275 3.54901 12 h after light 6.361905 5.5644 7.15941 2 h after dark 6.502425 6.49391 6.51094 4 h after dark 4.51285 3.96858 5.05712 8 h after dark 4.51213 3.96849 5.05577 12 h after dark 4.148375 3.68227 4.61448