condition	mean	min	max
4 h after light	18.76698	16.410967	21.122993
8 h after light	19.852498	16.791136	22.91386
12 h after light	17.629112499999998	17.602354	17.655871
4 h after dark	18.062582	16.917478	19.207686
8 h after dark	13.594385500000001	12.531444	14.657327
12 h after dark	16.917478	16.917478	16.917478