condition	mean	min	max
4 h after light	7.388953333333333	7.163189999999999	7.693160000000001
8 h after light	7.3059400000000005	7.065010000000001	7.44675
12 h after light	7.368213333333333	7.26473	7.4668399999999995
4 h after dark	7.605033333333333	7.57838	7.625430000000001
8 h after dark	7.52799	7.1762	7.73372
12 h after dark	7.563743333333333	7.46145	7.729139999999999