condition	mean	min	max
4 h after light	13.7674	11.7286	15.8062
8 h after light	8.650210000000001	8.64258	8.65784
12 h after light	6.956935	6.84071	7.07316
4 h after dark	10.17594	8.86562	11.2959
8 h after dark	12.9637	11.9774	13.8169
12 h after dark	13.134533333333334	11.3913	16.2312