condition	mean	min	max
4 h after light	7.676489999999999	7.597643	7.755337
8 h after light	7.646142	7.646142	7.646142
12 h after light	7.6590145	7.646142	7.671887
4 h after dark	7.49312	7.233271	7.752969
8 h after dark	8.547379	8.295975	8.798783
12 h after dark	7.488155	7.488155	7.488155