condition mean min max 0 h after light 2.7859 2.13351 3.43829 4 h after light 4.333845 3.6583 5.00939 8 h after light 2.41925 2.36063 2.47787 4 h after dark 3.7883500000000003 3.73524 3.84146 8 h after dark 3.16572 3.01482 3.31662 12 h after dark 4.02456 3.42756 4.62156