condition	mean	min	max
4 h after light	21.6691	19.6822	23.656
8 h after light	16.84755	15.9645	17.7306
12 h after light	19.0092	16.9145	21.1039
4 h after dark	17.9234	17.7897	18.0071
8 h after dark	20.901466666666668	19.8008	22.4943
12 h after dark	22.15086666666667	21.0161	24.2389