condition	mean	min	max
4 h after light	5.207215	5.03653	5.3779
8 h after light	5.235145	5.04928	5.42101
12 h after light	5.2058	5.06319	5.34841
4 h after dark	5.73198	5.30657	6.37601
8 h after dark	4.763163333333333	3.74305	5.32217
12 h after dark	4.674063333333333	4.20641	5.05805