Key	Year	Country	Number of lactations	Length of the lactations (days)	Milk yield per recorded cow (kg)	Milk per cow in 305 days (kg)	Percent fat content (%)	Percent protein content (%)	Calving interval (days)	Others	E-mail address of the responsible
10	2010	SPAIN	336399	370,7	10826,3	9250,9	3,66	3,25	405		amartinr@mapa.es
9	2009	SPAIN	351874	369,4	10590	9061	3,7	3,23	405		amartinr@marm.es
8	2008	SPAIN	349578	368,8	10587,7	9092,2	3,68	3,21	405		amartinr@mapa.es
7	2007	SPAIN	329448	361,9	10393,8	9028	3,65	3,12	405		amartinr@mapya.es
6	2006	SPAIN	324102	352	10116	8945,3	3,69	3,16	405		amartinr@mapya.es
5	2005	SPAIN	339694	345,7	9767	8735	3,68	3,16	405		amartinr@mapya.es
4	2004	SPAIN	340980	344,7	9535,5	8547,46	3,66	3,15	392		amartinr@mapya.es
3	2003	SPAIN	340008	338,7	9357,61	8488,29	3,64	3,13	395		amartinr@mapya.es
2	2002	SPAIN	333868	337	9221	8392	3,64	3,12	395		amartinr@mapya.es
1	2001	SPAIN	248700	333	8901	8153	3,64	3,12	396		amartinr@mapya.es