condition	mean	min	max
4 h after light	18.0096	17.3084	18.7108
8 h after light	7.7281200000000005	7.38954	8.0667
12 h after light	7.839065	7.10487	8.57326
4 h after dark	21.82786666666667	18.7295	26.3773
8 h after dark	33.93873333333333	32.5722	35.4151
12 h after dark	30.277866666666664	29.0266	32.3917