condition	mean	min	max
4 h after light	18.90165	18.0299	19.7734
8 h after light	18.3079	18.0196	18.5962
12 h after light	18.669	17.2539	20.0841
4 h after dark	21.46585	21.4391	21.4926
8 h after dark	22.6607	22.4922	22.8292
12 h after dark	21.7352	21.6053	21.8651