Key	Year	Country	Breed	Number of lactations	Length of the lactations (days)	Milk yield per recorded cow (kg)	Milk per cow in 305 days (kg)	Percent of fat content (%)	Percent of protein content (%)	Calving interval (days)	Others	E-mail address of the responsible
21	2011	Japan	Holstein	321953	368	10412		3.96	3.30	437		webmaster@liaj.or.jp
22	2011	Japan	Jersey	1742	339	6483		5.04	3.87	405		webmaster@liaj.or.jp
19	2010	Japan	Holstein	327856	363	10343	9371	3.99	3.29	432		webmaster@liaj.or.jp
20	2010	Japan	Jersey	1776	337	6453	6130	5.05	3.84	407		webmaster@liaj.or.jp
17	2009	Japan	Holstein	331411	363	10246	9282	4	3.3	431		webmaster@liaj.or.jp
18	2009	Japan	Jersey	1789	337	6358	6087	5.03	3.84	406		webmaster@liaj.or.jp
15	2008	Japan	Holstein	333011	359	10031	9203	4.01	3.30	428		webmaster@liaj.or.jp
16	2008	Japan	Jersey	1860	339	6320	6041	5.00	3.87	409		webmaster@liaj.or.jp
13	2007	Japan	Holstein	325986	360	10042	9203	4.01	3.30	426		webmaster@liaj.or.jp
14	2007	Japan	Jersey	1873	341	6394	6053	4.97	3.88	406		webmaster@liaj.or.jp
11	2006	Japan	Holstein	315364	359	10096	9235	4.01	3.32	430		webmaster@liaj.or.jp
12	2006	Japan	Jersey	1853	337	6354	6099	4.91	3.88	408		webmaster@liaj.or.jp
9	2005	Japan	Holstein	311491	362	10110	9186	4.01	3.31	432		webmaster@liaj.or.jp
10	2005	Japan	Jersey	1743	340	6295	5958	4.92	3.89	405		webmaster@liaj.or.jp
7	2004	Japan	Holstein	269595	363	10327	9381	4.01	3.30	435		webmaster@liaj.or.jp
8	2004	Japan	Jersey	1741	336	6184	6005	4.91	3.86	400		webmaster@liaj.or.jp
5	2003	Japan	Holstein	292857	358	10010	9198	4.01	3.30	431		webmaster@liaj.or.jp
6	2003	Japan	Jersey	1724	337	6169	5942	4.94	3.88	408		webmaster@liaj.or.jp
3	2002	Japan	Holstein	299019	356	9842	9094	3.97	3.27	430		webmaster@liaj.or.jp
4	2002	Japan	Jersey	1665	342	6227	5774	4.90	3.86	409		webmaster@liaj.or.jp
1	2001	Japan	Holstein	291612	356	9681	8940	3.95	3.26	429		webmaster@liaj.or.jp
2	2001	Japan	Jersey	1562	334	6168	5951	4.90	3.84	404		webmaster@liaj.or.jp