condition mean min max 4 h after light 813.1222809999999 555.061151 1071.183411 8 h after light 1157.827718 1126.423379 1189.232057 12 h after light 1071.4493885000002 755.899114 1386.999663 4 h after dark 702.7700225000001 424.328429 981.211616 8 h after dark 544.937694 416.650966 673.224422 12 h after dark 490.668103 490.668103 490.668103