condition	mean	min	max
4 h after light	6.30302	5.38639	7.21965
8 h after light	7.433375	7.28793	7.57882
12 h after light	7.993755	7.79861	8.1889
4 h after dark	10.6253	10.3578	11.1319
8 h after dark	8.937823333333332	8.08874	9.46974
12 h after dark	7.30981	7.1307	7.55877