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
14	2009	Japan	963800	21200	45.5	8117	3.94		Total number of cows and herds, on the 1st Feb 2010	webmaster@liaj.or.jp
13	2008	Japan	985200	22300	44.2	8049	3.96		Total number of cows and herds, on the 1st Feb 2009	webmaster@liaj.or.jp
10	2007	Japan	998200	23500	42.5	7988	3.96		Total number of cows and herds, on the 1st Feb 2008	webmaster@liaj.or.jp
9	2006	Japan	1011000	24600	41.1	7864	3.97		Total number of cows and herds, on the 1st Feb 2007	webmaster@liaj.or.jp
8	2005	Japan	1046000	25700	40.7	7894	3.99		Total number of cows and herds, on the 1st Feb 2006	webmaster@liaj.or.jp
7	2004	Japan	1055000	26900	39.2	7732	3.99	3.25	Total number of cows and herds, on the 1st Feb 2005	webmaster@liaj.or.jp
6	2003	Japan	1088000	27900	39.0	7613	3.99	3.27	Total number of cows and herds, on the 1st Feb 2004	webmaster@liaj.or.jp
5	2002	Japan	1120000	29000	38.6	7462	3.94	3.26	Total number of cows and herds, on the 1st Feb 2003	webmaster@liaj.or.jp
1	2001	Japan	1126000	30100	37.4	7388	3.92	3.24	Total number of cows and herds, on the 1st Feb 2002	webmaster@liaj.or.jp