condition mean min max 4 h after light 4.644245 4.23274 5.05575 8 h after light 6.329420000000001 6.14425 6.51459 12 h after light 6.6280850000000004 6.22111 7.03506 4 h after dark 6.987525 6.55891 7.41614 8 h after dark 5.1299150000000004 5.10147 5.15836 12 h after dark 5.795295 5.46058 6.13001