condition	mean	min	max
0 h after light	21.0765	20.5212	21.6318
4 h after light	8.722665	7.17793	10.2674
8 h after light	8.89498	7.63866	10.1513
4 h after dark	18.7678	16.0935	21.4421
8 h after dark	19.6186	18.5518	20.6854
12 h after dark	20.5182	18.4016	22.6348