condition	mean	min	max
4 h after light	2.13497	1.87152	2.39842
8 h after light	1.44679	1.30175	1.59183
12 h after light	2.137135	2.07372	2.20055
4 h after dark	2.40382	2.37643	2.43121
8 h after dark	2.543405	2.24077	2.84604
12 h after dark	2.49786	2.39252	2.6032