condition mean min max 4 h after light 6610.378 6136.193 7127.522 8 h after light 10052.866 8954.788 10948.67 12 h after light 6916.566333333333 4799.639 8927.993 16 h after light 5972.407 5087.854 6699.771 4 h after dark 3744.173 3294.2529999999997 4042.067 8 h after dark 3353.7763333333332 2176.734 3958.847