condition	mean	min	max
4 h after light	7.100040000000001	6.9822	7.259760000000001
8 h after light	7.465603333333334	7.34335	7.558960000000001
12 h after light	7.866036666666666	7.79442	7.984319999999999
4 h after dark	7.712809999999999	7.651389999999999	7.79922
8 h after dark	7.407	7.20321	7.6420699999999995
12 h after dark	7.063563333333333	7.0239899999999995	7.137169999999999