condition	mean	min	max
4 h after light	3880.2	3880.2	3880.2
8 h after light	3843.65	3564.8	4122.5
12 h after light	3925.5	3583.5	4267.5
4 h after dark	3803.95	3732.8	3875.1
8 h after dark	3316.8	3116.9	3516.7
12 h after dark	3053.0	2720.2	3385.8