condition mean min max 4 h after light 16.2861895 11.246162 21.326217 8 h after light 9.961997499999999 9.629202 10.294793 12 h after light 10.25111 9.837242 10.664978 4 h after dark 10.011282999999999 9.386984 10.635582 8 h after dark 11.4582815 11.177392 11.739171 12 h after dark 12.211552 12.211552 12.211552