Compact Discs

Volume, Title, and Unique Books data collected on May 31, 2016.
Circulation statistics for the ALC fiscal year ending May 31, 2016.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Compact Discs. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899
1900-1909	3	1	1		2	7
1910-1919
1920-1929
1930-1939
1940-1949		1				1
1950-1959	9		6			15
1960-1969	16	8	9		3	36
1970-1974	23	14	5		5	47
1975-1979	27	14	18		11	70
1980-1984	84	59	88		71	302
1985-1989	388	279	670		267	1,604
1990-1994	632	573	1,376		233	2,814
1995-1999	1,196	1,057	1,439		77	3,769
2000-2004	1,566	2,754	1,192		83	5,595
2005-2009	3,192	5,074	1,944		38	10,248
2010-2014	1,130	3,202	869		17	5,218
2015	6	838	45			889
2016		363				363
Totals	8,308	15,045	7,674	0	809	31,836
Average Age	2002	2006	2000	NA	1992	2003
Percent of Collection	2.44%	4.30%	4.33%	0%	0.98%	2.91%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Compact Discs. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899
1900-1909	2	1	1		2	6
1910-1919
1920-1929
1930-1939
1940-1949		1				1
1950-1959	4		6			10
1960-1969	13	6	9		3	31
1970-1974	11	14	5		5	34
1975-1979	14	14	17		11	56
1980-1984	56	55	87		69	255
1985-1989	252	254	630		247	1,339
1990-1994	383	524	1,273		180	2,283
1995-1999	701	956	1,273		63	2,906
2000-2004	700	2,177	1,041		45	3,911
2005-2009	1,167	3,482	1,372		36	6,018
2010-2014	195	2,067	533		17	2,799
2015	2	561	19			581
2016		279				279
Totals	3,508	10,899	6,278	0	680	21,036
Average Age	2000	2006	1999	NA	1991	2002
Percent of Collection	1.31%	4.88%	3.94%	0%	0.91%	2.86%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Compact Discs. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1400-1699
1700-1799
1800-1899
1900-1909	1	1	1		2
1910-1919
1920-1929
1930-1939
1940-1949		1
1950-1959			5
1960-1969	6	5	8		3
1970-1974	4	13	5		5
1975-1979	5	13	16		11
1980-1984	29	49	81		59
1985-1989	147	224	573		214
1990-1994	171	470	1,155		151
1995-1999	338	854	1,139		43
2000-2004	239	1,736	914		28
2005-2009	360	2,311	1,229		22
2010-2014	89	1,249	468		8
2015	1	358	17
2016		206
Totals	1,391	7,764	5,623	0	548
Average Age	1999	2005	1999	NA	1990

Total Circulation

A count of charges and renewals for Compact Discs. This count only includes circulation of bound monographs, CDs, videos, and DVDs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	40	0	0	1	0	0	41
APL Items	563	28,169	276	97	0	1	29,106
HSU Items	0	0	49	0	0	0	49
McM Items	0	0	0	0	0	0	0
HPU Items	0	0	0	0	0	27	27
Totals	603	28,169	325	98	0	28	29,223

Circulation by Item Age

A count of charges and renewals for Compact Discs, broken down by item age and item owner. This count only includes circulation of bound monographs, CDs, videos, and DVDs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899
1900-1909
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959
1960-1969		17				17
1970-1974		31				31
1975-1979		9				9
1980-1984		101	1			102
1985-1989		347	8			355
1990-1994		484	6			490
1995-1999	1	1,278	11			1,290
2000-2004	11	4,084	3		5	4,103
2005-2009	9	8,216	18		12	8,255
2010-2014	19	8,348	2		10	8,379
2015		3,232				3,232
2016		305				305
Totals	40	26,452	49	0	27	26,568
Percent of Circulation	0.17%	5.67%	0.43%	0%	0.86%	5.23%

Non-Circulating Use

A count of Non-Circulating usage for Compact Discs (as recorded by the circulation "Mark Item Used" command). This count only includes bound monographs, CDs, videos, and DVDs.

ACU	APL	HSU	McM	HPU
29	187	2	0	1

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