condition	mean	min	max
0 h after light	8.765075	7.91454	9.61561
4 h after light	6.24299	6.17693	6.30905
8 h after light	10.9927	10.3292	11.6562
4 h after dark	13.2582	12.5692	13.9472
8 h after dark	9.574675	9.19849	9.95086
12 h after dark	8.21627	6.72673	9.70581