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	69 529				4.18	3.44			alta@arc.agric.za
11	2009	South Africa	77 366		7 194	7 194	4.14	3.42			jill@arc.agric.za
9	2008	South Africa	71 294		7 025	7 025	4.19	3.42	423		eurika@arc.argic.za
8	2007	South Africa	72 097	323	7 358	7 358	4,12	3,38	425		jill@arc.agric.za
7	2006	South Africa	72 580	321	7 012	7 012	4,17	3,45	423		jill@arc.agric.za
6	2005	South Africa	67 860	317	7 168	7 168	4.07	3.40	421		jill@arc.agric.za
5	2004	South Africa	80 583	297	7 060	7 060	4.13	3.38	414		jill@arc.agric.za
3	2003	South Africa	70 157			4 841	4,32	3,34			jill@idpi1.agric.za
2	2002	South Africa	67 102	295		6 941	3,81	3,31	421		jill@idpi1.agric.za
4	2001	South Africa	69 252	295		6 850	3,79	3,27	420		jill@idpi1.agric.za