condition	mean	min	max
4 h after light	6.121803333333333	5.96323	6.3442
8 h after light	5.9417333333333335	5.74841	6.07356
12 h after light	5.82462	5.75436	5.96143
4 h after dark	5.98335	5.8978	6.137519999999999
8 h after dark	5.811966666666667	5.60235	5.97928
12 h after dark	5.91743	5.73011	6.05919