Key	Year	Country	Total number of dairy cows	Total number of dairy herds	Average of cows per herd	Average milk production per cow per year (kg)	Percent of fat production per cow per year (%)	Percent of protein production per cow per year (%)	Others	E-mail address of the responsible
11	2009	SPAIN	838.000	36.700	22,8					amartinr@marm.es
10	2008	SPAIN	888286	38.900	22,8	6644,4	3,72	3,22		amartinr@marm.es
9	2007	SPAIN	933.000	47.000	19,8	5747	3,76	3,15		amartinr@mapya.es
8	2006	Spain	982.000	47.700	20,58	5729	3,76	3,15		amartinr@mapya.es
7	2005	SPAIN	1.074.000	57.000	18,84	5522	3,75	3,37		amartinr@mapya.es
6	2004	Spain	1.070.000	64.400	16,6	5614	3,75	3,2		amartinr@mapya.es
5	2003	Spain	1113089	71.700	15,5	5464	3,75	3,2		amartinr@mapya.es
3	2002	Spain	1362127	45623	29,8	5244	3,74	3,11		amartinr@mapya.es
2	2001	Spain	1370422	46000	29	5216	3,74	3,11		amartinr@mapya.es