condition mean min max 0 h after light 8.08701 6.47373 9.70029 2 h after light 7.42895 7.09871 7.75919 4 h after light 6.56634 5.48822 7.64446 8 h after light 10.771709999999999 8.58292 12.9605 12 h after light 17.9555 17.8363 18.0747 2 h after dark 22.37775 18.9969 25.7586 4 h after dark 16.067549999999997 15.5552 16.5799 8 h after dark 12.992550000000001 12.8901 13.095 12 h after dark 9.409405 8.31111 10.5077