continent	latitude	females	se	males	se	ratio	se
na	35.5	901	2.5	797	3.8	0.831	0.01
na	37	896	3.5	806	3	0.834	0.014
na	38.6	906	3	812	3.2	0.836	0.012
na	40.7	907	3.5	807	3.2	0.833	0.013
na	40.9	898	3.6	818	2.7	0.83	0.012
na	42.4	893	3.4	809	3.3	0.828	0.015
na	45	913	4.3	810	4.3	0.834	0.024
na	46.8	915	3.8	819	3.3	0.825	0.014
na	48.8	927	2	800	4.9	0.832	0.009
na	49.8	924	4.5	823	2.2	0.824	0.011
na	50.8	930	3.4	814	4.1	0.826	0.013
eu	36.4	905	6.1	789	5.9	0.822	0.016
eu	39.3	889	4.7	803	3.5	0.809	0.021
eu	41.3	915	2.1	812	3.7	0.821	0.007
eu	43.4	930	2.6	820	3.1	0.831	0.016
eu	45.5	895	4.4	808	2.9	0.821	0.017
eu	47.3	926	3.2	815	6.2	0.826	0.01
eu	48.5	944	4.8	855	3.1	0.825	0.032
eu	50.4	925	3.2	842	4.3	0.82	0.013
eu	52.1	920	3.9	819	3.1	0.834	0.019
eu	56.1	934	4.2	839	4.4	0.825	0.012