Database Statistics

Last updated: 2013-05-21

Basic metadata

Artists
Artists:		756,115
	of type Person:	356,034	47.1%
	of type Group:	186,510	24.7%
	of type Other:	1,146	0.2%
	with no type set:	212,425	28.1%
	with appearances in artist credits:	564,956	74.7%
	with no appearances in artist credits:	191,159	25.3%
Non-group artists:		569,605
	Male:	113,756	20.0%
	Female:	31,573	5.5%
	Other gender:	71	0.0%
	with no gender set:	424,205	74.5%

Releases
Releases:			1,154,885
	by various artists:		121,132	10.5%
	by a single artist:		1,033,753	89.5%
Release Status
Releases:			1,154,885
	Official		1,032,804	89.4%
	Promotion		35,080	3.0%
	Bootleg		29,514	2.6%
	Pseudo-Release		7,369	0.6%
	No status set		50,118	4.3%
Release Packaging
Releases:			1,154,885
	Jewel Case		74,582	6.5%
	Slim Jewel Case		4,442	0.4%
	Digipak		17,794	1.5%
	Cardboard/Paper Sleeve		29,091	2.5%
	Other		5,325	0.5%
	Keep Case		518	0.0%
	None		33,569	2.9%
	No packaging set		989,564	85.7%
Cover Art Sources
Releases:			1,154,885
	CAA:		115,782	10.0%
	Amazon:		348,736	30.2%
	URL Relationships:		10,199	0.9%
	No front cover art:		680,168	58.9%
Data Quality
Releases:			1,154,885
	High Data Quality:		2,225	0.2%
	Default Data Quality:		1,151,797	99.7%
		Normal Data Quality:	1,695	0.1%
		Unknown Data Quality:	1,150,102	99.9%
	Low Data Quality:		861	0.1%
Disc IDs
Disc IDs:			538,823
Releases:			1,154,885
	Releases with no disc IDs:		720,964	62.4%
	Releases with at least one disc ID:		433,921	37.6%
		with 1 disc ID:	332,659	76.7%
		with 2 disc IDs:	60,017	13.8%
		with 3 disc IDs:	17,279	4.0%
		with 4 disc IDs:	8,720	2.0%
		with 5 disc IDs:	4,476	1.0%
		with 6 disc IDs:	2,938	0.7%
		with 7 disc IDs:	1,841	0.4%
		with 8 disc IDs:	1,363	0.3%
		with 9 disc IDs:	911	0.2%
		with 10 or more disc IDs:	3,717	0.9%
Mediums:			1,281,038
	Mediums with no disc IDs:		787,924	61.5%
	Mediums with at least one disc ID:		493,114	38.5%
		with 1 disc ID:	417,198	84.6%
		with 2 disc IDs:	44,479	9.0%
		with 3 disc IDs:	13,465	2.7%
		with 4 disc IDs:	6,108	1.2%
		with 5 disc IDs:	3,387	0.7%
		with 6 disc IDs:	2,261	0.5%
		with 7 disc IDs:	1,590	0.3%
		with 8 disc IDs:	1,085	0.2%
		with 9 disc IDs:	730	0.1%
		with 10 or more disc IDs:	2,811	0.6%

Recordings
Recordings:		12,372,008
Recordings with no PUIDs:		7,961,981	64.4%
Recordings with at least one PUID:		4,410,027	35.6%
	with 1 PUID:	3,585,775	81.3%
	with 2 PUIDs:	546,873	12.4%
	with 3 PUIDs:	143,491	3.3%
	with 4 PUIDs:	55,395	1.3%
	with 5 PUIDs:	26,880	0.6%
	with 6 PUIDs:	14,996	0.3%
	with 7 PUIDs:	9,600	0.2%
	with 8 PUIDs:	6,186	0.1%
	with 9 PUIDs:	4,382	0.1%
	with 10 or more PUIDs:	16,448	0.4%
PUIDs
PUIDs (on recordings):		5,974,557
PUIDs (distinct IDs):		5,434,896
	which identify 1 recording:	5,020,729	92.4%
	which identify 2 recordings:	334,100	6.1%
	which identify 3 recordings:	54,783	1.0%
	which identify 4 recordings:	14,975	0.3%
	which identify 5 recordings:	5,519	0.1%
	which identify 6 recordings:	2,439	0.0%
	which identify 7 recordings:	1,156	0.0%
	which identify 8 recordings:	551	0.0%
	which identify 9 recordings:	304	0.0%
	which identify 10+ recordings:	340	0.0%