condition	mean	min	max
4 h after light	7.46492	7.06064	7.8692
8 h after light	9.959515	9.56343	10.3556
12 h after light	18.37315	17.0312	19.7151
4 h after dark	18.2243	17.3342	19.1144
8 h after dark	13.061150000000001	12.4435	13.6788
12 h after dark	11.0517	10.8871	11.2163