condition	mean	min	max
4 h after light	3.949705	3.2955	4.60391
8 h after light	3.85934	3.84143	3.87725
12 h after light	4.795755	4.60094	4.99057
4 h after dark	6.00464	5.86816	6.14112
8 h after dark	4.867115	4.75521	4.97902
12 h after dark	5.04879	4.84765	5.24993