condition	mean	min	max
4 h after light	11.219425	9.02155	13.4173
8 h after light	13.1874	12.6434	13.7314
12 h after light	16.23845	14.2508	18.2261
4 h after dark	18.62125	16.9095	20.333
8 h after dark	16.51015	16.1832	16.8371
12 h after dark	15.2833	15.0737	15.4929