condition	mean	min	max
4 h after light	5.93041	5.14743	6.71339
8 h after light	6.13345	5.81004	6.45686
12 h after light	5.347195	4.80631	5.88808
4 h after dark	11.4871	10.174	12.8002
8 h after dark	12.149	11.6673	12.6307
12 h after dark	11.7381	11.1979	12.2783