condition	mean	min	max
4 h after light	1.655365	1.44408	1.86665
8 h after light	1.425845	1.40982	1.44187
12 h after light	1.91505	1.87837	1.95173
4 h after dark	2.766605	2.33173	3.20148
8 h after dark	2.08858	2.05686	2.1203
12 h after dark	2.26206	2.15997	2.36415