condition	mean	min	max
4 h after light	19.782043	17.979252	21.584834
8 h after light	18.068307	18.068307	18.068307
12 h after light	17.8849885	17.70167	18.068307
4 h after dark	19.595214	18.556413	20.634015
8 h after dark	17.155946	16.243585	18.068307
12 h after dark	17.395145	17.395145	17.395145