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
12	2010	Austria	532.735	47.238	11,3	6.100	4,07	3,33		rehling@zuchtdata.at
11	2009	Austria	532.976	47.499	11,2	6.068	4,08	3,33		rehling@zuchtdata.at
10	2008	Austria	530.221	48.362	11,0	6.059	4,10	3,35		rehling@zuchtdata.at
7	2007	Austria	524.500	50.238	10,4	5.997	4,09	3,32		rehling@zuchtdata.at
6	2006	Austria	527.421	52.157	10,1	5.903	4,12	3,35		mayerhofer@zuchtdata.at
5	2005	Austria	534.387	54.295	9,8	5.783	4,15	3,38		mayerhofer@zuchtdata.at
4	2004	Austria	537.953			5.802	4,15	3,38		mayerhofer@zuchtdata.at
3	2003	Austria	583.281	65.965	8,8	5,638	4,15	3,38		mayerhofer@zuchtdata.at
2	2002	Austria	588.971			5.487	4,14	3,38		mayerhofer@zuchtdata.at
1	2001	Austria	597.981	77.515	7,7	5.394	4,13	3,37		mayerhofer@zuchtdata.at