condition	mean	min	max
0 h after light	3.650265	3.55941	3.74112
4 h after light	5.86267	4.99424	6.7311
8 h after light	6.32319	6.29616	6.35022
4 h after dark	7.694565	7.62197	7.76716
8 h after dark	6.608225	6.49393	6.72252
12 h after dark	4.91503	3.78772	6.04234