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
9	2009	Switzerland	353183	317	7337	7124	4.03	3.32	401		info@asrbern.ch
8	2008	Switzerland	338793	316	7261	7066	3.97	3.29	400		info@asrbern.ch
7	2007	Switzerland	334318	316	7284	7091	4.00	3.30	399		info@asrbern.ch
6	2006	Switzerland	335258	316	7252	7060	3.99	3.32	399		info@asrbern.ch
5	2005	Switzerland	346538	313	7226	7031	3,95	3,31	399		info@asrbern.ch
4	2004	Switzerland	351798	312	6951	6818	3,93	3,26	398		info@asrbern.ch
3	2003	Switzerland	358081	311	6809	6718	3,96	3,26	396		info@asrbern.ch
2	2002	Switzerland	364315	285	6718	6608	3,99	3,26	395		info@asrbern.ch
1	2001	Switzerland	365543	286	6539	6440	3,96	3,26	394		info@asrbern.ch