condition	mean	min	max
3 h after light	7.18173	6.28974	7.9314
6 h after light	4.48935	1.8797	6.16134
9 h after light	5.63438	4.60598	6.66085
12 h after light	8.220625	6.88721	10.8004
3 h after dark	8.350176666666666	5.23904	12.7201
6 h after dark	7.301286666666667	6.39296	7.77971
9 h after dark	7.394006666666667	6.98474	8.02129
12 h after dark	7.38076	5.90814	8.85338