condition	mean	min	max
4 h after light	9.034396000000001	8.733635	9.335157
8 h after light	8.406813	8.234594	8.579032
12 h after light	8.066561	7.911693	8.221429
4 h after dark	8.0258955	8.007839	8.043952
8 h after dark	8.327352000000001	8.273878	8.380826
12 h after dark	8.532123	8.532123	8.532123