condition	mean	min	max
4 h after light	7.45148	7.272469999999999	7.58316
8 h after light	7.22706	7.0714	7.30708
12 h after light	7.163033333333334	7.05617	7.23837
4 h after dark	7.298016666666666	7.0482	7.462610000000001
8 h after dark	7.30898	7.1931	7.40422
12 h after dark	7.4938899999999995	7.4246	7.576569999999999