condition	mean	min	max
4 h after light	8.6480045	8.592612	8.703397
8 h after light	8.171712	8.060846	8.282578
12 h after light	9.382325	8.341994	10.422656
4 h after dark	8.558456	7.246555	9.870357
8 h after dark	8.4718695	7.405714	9.538025
12 h after dark	7.882093	7.882093	7.882093