condition	mean	min	max
4 h after light	6.9470315	6.55679	7.337273
8 h after light	6.4240215	6.078024	6.770019
12 h after light	8.2379155	7.791444	8.684387
4 h after dark	7.4575975	7.30143	7.613765
8 h after dark	7.7307105	7.25446	8.206961
12 h after dark	7.30143	7.30143	7.30143