condition mean min max 0 h after light 9.82065 8.6998 10.9415 2 h after light 4.15359 3.99145 4.31573 4 h after light 5.36883 5.04289 5.69477 8 h after light 5.236815 4.49229 5.98134 12 h after light 6.309365 5.83912 6.77961 2 h after dark 6.32148 5.3395 7.30346 4 h after dark 7.413835000000001 7.27623 7.55144 8 h after dark 9.615029999999999 7.93936 11.2907 12 h after dark 8.43831 7.90251 8.97411