condition	mean	min	max
4 h after light	14.21275	12.641	15.7845
8 h after light	16.59495	16.5648	16.6251
12 h after light	17.3784	16.4198	18.337
4 h after dark	23.4145	22.8332	23.9958
8 h after dark	20.2009	19.7211	20.6807
12 h after dark	19.509149999999998	19.4502	19.5681