condition	mean	min	max
4 h after light	8.454746666666667	7.663530000000001	8.90751
8 h after light	8.183923333333334	7.6733899999999995	8.84725
12 h after light	7.9463	7.435919999999999	8.26905
4 h after dark	8.018356666666666	7.269480000000001	8.83447
8 h after dark	8.129859999999999	7.6546199999999995	8.37004
12 h after dark	8.383223333333333	7.69998	8.75115