condition	mean	min	max
4 h after light	19.1147	15.7999	22.4295
8 h after light	40.725750000000005	40.6875	40.764
12 h after light	56.5032	53.9993	59.0071
4 h after dark	67.6517	63.7161	71.5873
8 h after dark	43.80265	43.1362	44.4691
12 h after dark	38.80475	38.0318	39.5777