condition	mean	min	max
4 h after light	7.05403	6.891	7.218160000000001
8 h after light	6.97347	6.73871	7.231669999999999
12 h after light	7.213913333333334	7.11575	7.41018
4 h after dark	6.88582	6.72633	7.045910000000001
8 h after dark	7.08571	6.92921	7.2880899999999995
12 h after dark	6.865746666666666	6.769239999999999	6.97253