condition	mean	min	max
4 h after light	9.591285	8.86919	10.31338
8 h after light	8.350495500000001	7.717018	8.983973
12 h after light	8.299330000000001	8.206867	8.391793
4 h after dark	9.384466499999998	9.212983	9.55595
8 h after dark	8.488016	8.216931	8.759101
12 h after dark	8.781105	8.781105	8.781105