condition	mean	min	max
4 h after light	8.679032	8.287353	9.070711
8 h after light	8.0439535	7.83773	8.250177
12 h after light	7.8345445	7.418912	8.250177
4 h after dark	8.250177	8.250177	8.250177
8 h after dark	8.250177	8.250177	8.250177
12 h after dark	8.566686	8.566686	8.566686