condition	mean	min	max
4 h after light	1.8603200000000002	1.856	1.86464
8 h after light	1.708145	1.6541	1.76219
12 h after light	2.2091450000000004	2.04313	2.37516
4 h after dark	4.039425	3.70465	4.3742
8 h after dark	2.8893250000000004	2.61126	3.16739
12 h after dark	2.5157499999999997	2.51443	2.51707