condition	mean	min	max
0 h after light	20.979100000000003	19.7524	22.2058
4 h after light	5.67812	3.90105	7.45519
8 h after light	5.53528	4.64006	6.4305
4 h after dark	14.36275	13.7788	14.9467
8 h after dark	8.612475	8.1753	9.04965
12 h after dark	13.713295	8.88289	18.5437