condition mean min max 4 h after light 1.87006 1.71121 2.02891 8 h after light 3.2469200000000003 3.24654 3.2473 12 h after light 5.74766 5.37039 6.12493 4 h after dark 6.2025950000000005 5.47389 6.9313 8 h after dark 5.89738 5.64988 6.14488 12 h after dark 4.07654 3.60802 4.54506