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	2008	Portugal	46528	367	10658	9180	3,67%	3,28%			jaimemachado2007@gmail.com
8	2007	Portugal	46481	369	10456	8928	3,61%	3,23%			jaimemachado2007@gmail.com
7	2006	Portugal	48289	363	10355	8926	3,56%	3,22%			jaimemachado2007@gmail.com
6	2005	Portugal	49197	361	10141	8759	3,60%	3,27%			jaimemachado2007@gmail.com
5	2004	Portugal	48369	364	9854	8474	3,63%	3,26%			jmachado@anable.pt
4	2003	Portugal	41776	358	9496	8263	3,65%	3,22%			jmachado@anable.pt
3	2002	Portugal	38174	355	9165	8037	3,67%	3,22%			jmachado@anable.pt
1	2001	Portugal	33780	351	8749	7733	3,66%	3,19%			jmachado@anable.pt