condition mean min max 4 h after light 10.413055 9.11451 11.7116 8 h after light 8.90911 7.83578 9.98244 12 h after light 8.17376 7.7686 8.57892 4 h after dark 9.94516 9.82727 10.0545 8 h after dark 9.980656666666667 8.92487 10.9233 12 h after dark 11.3382 11.0265 11.5116