condition	mean	min	max
4 h after light	4.02886	3.50306	4.55466
8 h after light	3.686675	3.57219	3.80116
12 h after light	4.48916	3.94442	5.0339
4 h after dark	16.8008	15.6061	17.9955
8 h after dark	13.0973	11.9499	14.2447
12 h after dark	7.785625	7.65943	7.91182