Key	Year	Country	Number of recorded cows	Percent of recorded cows	Number of  recorded herds	Percent of recorded herds	Average number of cows per recorded herd	Percent of  recorded herds per method A3	Percent of  recorded herds per method A4	Percent of  recorded herds per method A6	Percent of  recorded herds per method AT	Percent of  recorded herds per method B	Others	E-mail address of the responsible
8	2008	The Netherlands	1284231	87.6	17103	82.4	75.1	1.8	55.4	36.7				w.koops@pz.agro.nl
7	2007	The Netherlands	1225726	85,5	17300	81,1	70,9	2,0	56,6	35,5				w.koops@pz.agro.nl
6	2006	The Netherlands	1208518	85.1	17806	79.8	67.9	2.2	63.2	34.6				w.koops@pz.agro.nl
5	2005	the netherlands	1210307	84.5	18599	79.8	65.1	3	61	36				w.koops@pz.agro.nl
4	2004	The Netherlands	1255528	85	19324	79	65	3	61	36
3	2003	The Netherlands	1272352	85	19701	78	64	4	62	34
2	2002	The Netherlands	1248242	84	20538		60,8	4	64	32
1	2001	The Netherlands	1316184	82,1	21523	75,7	61,2	5	64	31