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	2010	South Africa	125 152	330	6 417	6 417	4.27	3.50	425		alta@arc.agric.za
11	2009	South Africa	138 887	330	6 790	6 790	4.13	3.42	421		jill@arc.agric.za
10	2008	South Africa	128 894	321	6 730	6 730	4.16	3.42	424		eurika@arc.agric.za
9	2007	South Africa	124 478	316	6 948	6 948	4,11	3,38	425		jill@arc.agric.za
8	2006	South Africa	123 946	319	6 186	6 135	4,15	3,44	425		jill@arc.agric.za
7	2005	South Africa	114 086	317	6 736	6 736	4.07	3.30	-		jill@arc.agric.za
5	2004	South Africa	129 279		6 658		4.12	3.38			jill@arc.agric.za
3	2003	South Africa	116 573				4,22	3,40			jill@idpi1.agric.za
2	2002	South Africa	113 652	295	6 609		4,01	3,37	415		jill@idpi1.agric.za
4	2001	South Africa	117321	295	6 521		4,01	3,33	414		jill@idpi1.agric.za