condition mean min max 0 h after light 15.28715 13.4555 17.1188 2 h after light 16.4546 14.7048 18.2044 4 h after light 12.8092 12.4289 13.1895 8 h after light 15.7549 12.6327 18.8771 12 h after light 33.42485 31.9423 34.9074 2 h after dark 29.4884 28.753 30.2238 4 h after dark 22.893749999999997 15.2838 30.5037 8 h after dark 21.1834 15.9217 26.4451 12 h after dark 17.277549999999998 16.9745 17.5806