condition	mean	min	max
4 h after light	16.4771225	15.253986	17.700259
8 h after light	17.5244995	15.996883	19.052116
12 h after light	14.3427655	12.414362	16.271169
4 h after dark	16.1683175	15.996883	16.339752
8 h after dark	15.332883500000001	14.668884	15.996883
12 h after dark	15.749049	15.749049	15.749049