condition	mean	min	max
4 h after light	15.3060045	14.368087	16.243922
8 h after light	17.7261145	16.559699	18.89253
12 h after light	17.106195	16.437649	17.774741
4 h after dark	15.4236495	14.956181	15.891118
8 h after dark	13.667303	12.223892	15.110714
12 h after dark	15.242892	15.242892	15.242892