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
12	2009	The Slovak Republic	61102	297	7375	7524	4,11	3,26	425		stefanryba@pssr.sk
11	2008	The Slovak Republic	29029	296	6754	6908	4.14	3.27	420		stefanryba@pssr.sk
10	2007	THE SLOVAK REPUBLIC	31939	296	6590	6740	4,03	3,25	424		stefanryba@pssr.sk
9	2006	THE SLOVAK REPUBLIC	35865	296	6417	6563	3,97	3,29	426		stefanryba@spusr.sk
8	2005	THE SLOVAK REPUBLIC	37131	295	6115	6270	3,98	3,27	421		stefanryba@spusr.sk
7	2004	THE SLOVAK REPUBLIC	41850	295	5931	6081	4,00	3,26	421		stefanryba@spusr.sk
3	2003	THE SLOVAK REPUBLIC	50313	294	5388	5538	3,98	3,31	407		stefanryba@spusr.sk
2	2002	THE SLOVAK REPUBLIC	54529	293	5092	5427	3,94	3,29	408		stefanryba@spusr.sk
1	2001	THE SLOVAK REPUBLIC	62051	292	4692	4848	4,13	3,32	410		stefanryba@spusr.sk