condition	mean	min	max
4 h after light	18.399250000000002	16.7874	20.0111
8 h after light	20.153750000000002	19.0871	21.2204
12 h after light	19.9732	19.5311	20.4153
4 h after dark	28.7479	26.8149	30.6809
8 h after dark	29.4344	28.9366	29.9322
12 h after dark	24.4224	21.6571	27.1877