condition	mean	min	max
0 h after light	8.7326	8.1311	9.3341
4 h after light	9.383605	7.60241	11.1648
8 h after light	7.509105	5.78355	9.23466
4 h after dark	9.187775	7.97155	10.404
8 h after dark	8.2257	7.65816	8.79324
12 h after dark	9.66063	5.94686	13.3744