condition	mean	min	max
4 h after light	18.007547	17.458681	18.556413
8 h after light	17.558017	16.530555	18.585479
12 h after light	17.375466	16.194519	18.556413
4 h after dark	17.6166715	14.508275	20.725068
8 h after dark	19.3101825	18.989479	19.630886
12 h after dark	19.118042	19.118042	19.118042