condition mean min max 4 h after light 7.207565000000001 5.83527 8.57986 8 h after light 5.506615 5.40913 5.6041 12 h after light 7.358575 7.25967 7.45748 4 h after dark 9.827466666666666 9.58348 9.95964 8 h after dark 9.72003 9.00221 10.2318 12 h after dark 7.8843966666666665 6.75095 8.76301