condition	mean	min	max
4 h after light	15.798972000000001	14.301095	17.296849
8 h after light	18.2946385	15.761642	20.827635
12 h after light	15.717796	14.993856	16.441736
4 h after dark	15.989853499999999	14.252487	17.72722
8 h after dark	17.4550345	16.241989	18.66808
12 h after dark	18.208643	18.208643	18.208643