condition	mean	min	max
4 h after light	7.304936666666666	7.080539999999999	7.65417
8 h after light	7.39525	7.1222	7.761239999999999
12 h after light	8.159986666666667	8.032919999999999	8.357660000000001
4 h after dark	8.01468	7.87322	8.27112
8 h after dark	7.829373333333334	7.751060000000001	7.9372300000000005
12 h after dark	8.09829	7.84173	8.412410000000001