condition	mean	min	max
4 h after light	3.009835	2.46256	3.55711
8 h after light	2.76884	2.60738	2.9303
12 h after light	4.567105	4.23343	4.90078
4 h after dark	7.839963333333333	7.11394	8.57512
8 h after dark	9.55205	7.54835	10.7678
12 h after dark	3.23952	3.07004	3.57531