condition	mean	min	max
4 h after light	17.4929095	16.026502	18.959317
8 h after light	15.894844500000001	14.920048	16.869641
12 h after light	14.723820499999999	14.527593	14.920048
4 h after dark	14.328519499999999	13.736991	14.920048
8 h after dark	16.677897	14.625472	18.730322
12 h after dark	15.046795	15.046795	15.046795