condition	mean	min	max
4 h after light	15.653326	14.577886	16.728766
8 h after light	16.9584595	16.449352	17.467567
12 h after light	15.1454735	14.473586	15.817361
4 h after dark	17.9377145	16.177338	19.698091
8 h after dark	15.0342895	13.291517	16.777062
12 h after dark	16.523099	16.523099	16.523099