condition mean min max 4 h after light 181.87765100000001 160.723373 203.031929 8 h after light 221.98143 209.251834 234.711026 12 h after light 220.351568 210.672498 230.030638 4 h after dark 221.901245 221.331564 222.470926 8 h after dark 192.57365199999998 172.299863 212.847441 12 h after dark 175.935044 175.935044 175.935044