condition	mean	min	max
4 h after light	15.864529999999998	15.592086	16.136974
8 h after light	17.9596795	16.155791	19.763568
12 h after light	54.494442	23.301265	85.687619
4 h after dark	17.002668	15.844979	18.160357
8 h after dark	18.912672	17.858565	19.966779
12 h after dark	18.449603	18.449603	18.449603