condition	mean	min	max
4 h after light	6.911975	5.86292	7.96103
8 h after light	6.80398	6.42816	7.1798
12 h after light	7.67607	7.6649	7.68724
4 h after dark	7.652523333333334	7.17882	8.22165
8 h after dark	8.274286666666667	7.10403	9.95833
12 h after dark	6.56958	6.06926	7.34084