condition	mean	min	max
0 h after light	17.6048	17.1046	18.105
4 h after light	16.4889	14.6368	18.341
8 h after light	13.3714	12.4523	14.2905
4 h after dark	16.2016	13.7878	18.6154
8 h after dark	17.06335	16.5503	17.5764
12 h after dark	19.658099999999997	18.9165	20.3997