condition	mean	min	max
4 h after light	7.27517	6.9295800000000005	7.4747699999999995
8 h after light	7.2372000000000005	7.042439999999999	7.497160000000001
12 h after light	7.609826666666667	7.18284	7.82677
4 h after dark	7.545816666666666	7.022239999999999	7.968319999999999
8 h after dark	7.193406666666667	6.77645	7.467410000000001
12 h after dark	7.144806666666667	6.84745	7.406389999999999