condition	mean	min	max
4 h after light	5.11289	5.02905	5.17277
8 h after light	5.1975533333333335	4.95101	5.4105300000000005
12 h after light	5.03295	5.01103	5.04791
4 h after dark	5.21493	5.11532	5.37205
8 h after dark	5.098166666666667	4.832269999999999	5.28258
12 h after dark	5.10191	4.96659	5.2741