condition	mean	min	max
4 h after light	1.919405	1.77529	2.06352
8 h after light	1.985065	1.43834	2.53179
12 h after light	2.13663	1.86411	2.40915
4 h after dark	3.19085	2.93721	3.44449
8 h after dark	3.47816	3.05577	3.90055
12 h after dark	2.187995	1.86131	2.51468