condition	mean	min	max
4 h after light	6.373725	6.35202	6.39543
8 h after light	5.418955	4.92946	5.90845
12 h after light	5.051715	4.89403	5.2094
4 h after dark	5.323613333333333	4.55666	6.00185
8 h after dark	5.4608	5.23627	5.69126
12 h after dark	4.773653333333333	2.2636	6.14744