condition	mean	min	max
4 h after light	7.117565	7.04404	7.19109
8 h after light	4.52677	3.89522	5.15832
12 h after light	3.625855	3.14112	4.11059
4 h after dark	6.795795	5.56624	8.02535
8 h after dark	5.094575	4.99046	5.19869
12 h after dark	5.80084	5.66451	5.93717