condition	mean	min	max
4 h after light	6.75002	6.56076	6.88047
8 h after light	5.928086666666666	5.89034	5.96436
12 h after light	5.8495099999999995	5.78749	5.95883
4 h after dark	6.010603333333333	5.83873	6.17545
8 h after dark	6.28703	6.1987	6.37484
12 h after dark	6.69011	6.56285	6.872610000000001