condition	mean	min	max
0 h after light	8.957709999999999	8.36291	9.55251
4 h after light	10.9437	10.641	11.2464
8 h after light	16.3809	15.7419	17.0199
4 h after dark	17.22895	15.5833	18.8746
8 h after dark	15.1504	14.4582	15.8426
12 h after dark	9.177055	7.71031	10.6438