Compact Discs

Volume, Title, and Unique Books data collected on May 31, 2013. (Revised Oct 17, 2013)
Circulation statistics for the ALC fiscal year ending May 31, 2013.

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	4	1		2	10
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	9		4			13
1960-1969	14	10	10		3	37
1970-1974	23	14	4		5	46
1975-1979	24	18	15		11	68
1980-1984	83	60	69		71	283
1985-1989	383	285	566		267	1,501
1990-1994	632	550	1,153		233	2,568
1995-1999	1,190	1,134	1,121		78	3,523
2000-2004	1,507	3,092	946		85	5,630
2005-2009	1,911	4,074	1,182		30	7,197
2010	458	954	216		3	1,631
2011	30	638	192		4	864
2012	505	624	47			1,176
2013	3	347	1			351
Totals	7,205	13,027	5,809	0	800	26,841
Average Age	2002	2005	1999	NA	1991	2002
Percent of Collection	2.24%	3.97%	3.25%	0%	0.98%	2.55%

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	2	1		2	7
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	4		4			8
1960-1969	11	8	10		3	32
1970-1974	11	13	4		5	32
1975-1979	13	18	14		11	56
1980-1984	55	56	66		69	234
1985-1989	250	257	525		247	1,238
1990-1994	383	496	1,056		180	2,042
1995-1999	701	1,018	965		64	2,662
2000-2004	668	2,406	813		47	3,887
2005-2009	894	2,654	926		28	4,471
2010	145	575	101		3	821
2011	7	417	137		4	559
2012	4	409	47			459
2013	1	227	1			228
Totals	3,318	9,311	4,813	0	671	17,806
Average Age	2000	2004	1998	NA	1991	2001
Percent of Collection	1.29%	4.47%	3.03%	0%	0.91%	2.52%

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
1950-1959			3
1960-1969	5	7	9		3
1970-1974	4	11	4		5
1975-1979	5	17	13		11
1980-1984	28	48	59		58
1985-1989	147	228	471		217
1990-1994	175	434	946		151
1995-1999	345	908	842		43
2000-2004	229	1,871	704		31
2005-2009	380	1,662	818		15
2010	67	300	85		1
2011	1	257	113		1
2012		247	45
2013		134
Totals	1,465	6,554	4,233	0	545
Average Age	1999	2003	1998	NA	1990

Total Circulation

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

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	132	1	3	2	0	0	138
APL Items	795	43,020	566	209	0	0	44,590
HSU Items	1	0	960	0	0	0	961
McM Items	0	0	0	0	0	0	0
HPU Items	1	0	0	0	0	4	5
Totals	929	43,021	1,529	211	0	4	45,694

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		3				3
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959			1			1
1960-1969		18	1			19
1970-1974		31	2			33
1975-1979		26	1			27
1980-1984		138	31			169
1985-1989	4	685	121			810
1990-1994	2	1,085	227			1,314
1995-1999	41	2,388	227		1	2,657
2000-2004	24	7,676	166			7,866
2005-2009	34	12,451	146			12,631
2010	6	5,081	6		1	5,094
2011	22	4,645	4		2	4,673
2012		4,937				4,937
2013		498				498
Totals	133	39,662	933	0	4	40,732
Percent of Circulation	0.50%	7.09%	5.05%	0%	0.21%	6.67%

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
22	3	187	0	0

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