condition mean min max 0 h after light 3737.69 3517.06 3958.32 2 h after light 6534.54 6488.95 6580.13 4 h after light 8946.055 8637.48 9254.63 8 h after light 11722.6 10971.6 12473.6 12 h after light 5356.335 5250.53 5462.14 2 h after dark 3576.8 3117.78 4035.82 4 h after dark 3850.31 3625.9 4074.72 8 h after dark 2585.505 2024.92 3146.09 12 h after dark 3168.48 3163.8 3173.16