condition	mean	min	max
4 h after light	6.219635	5.06373	7.37554
8 h after light	8.149280000000001	7.76796	8.5306
12 h after light	16.663	16.029	17.297
4 h after dark	15.2916	13.6118	16.1519
8 h after dark	14.364233333333333	13.5907	15.7825
12 h after dark	9.920283333333334	9.28905	10.4188