Compact Disks

Volume, Title, and Unique Books data collected on May 31, 2005.
Circulation statistics for the ALC fiscal year ending May 31, 2005.

Volume Count and Average Age

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

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909	3	4	1			8
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959		1	1			2
1960-1969	6	10	6		3	25
1970-1974	13	26	2		5	46
1975-1979	12	44	5		11	72
1980-1984	54	136	55	2	69	316
1985-1989	237	406	423		247	1,313
1990-1994	376	814	794		186	2,170
1995	151	181	153		16	501
1996	162	213	135		12	522
1997	170	297	179		17	663
1998	148	406	126		6	686
1999	116	468	163		11	758
2000	307	538	128		9	982
2001	61	573	81		8	723
2002	121	580	66		2	769
2003	89	619	43		48	799
2004	36	474	8		3	521
Totals	2,062	5,790	2,369	2	653	10,876
Average Age	1995	1997	1994	1982	1990	1996
Percent of Collection	0.80%	2.46%	1.59%	0.00%	0.88%	1.28%

Title Count and Average Age

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

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909	2	2	1			5
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959		1	1			2
1960-1969	5	10	6		3	24
1970-1974	4	23	2		5	34
1975-1979	6	33	4		11	54
1980-1984	42	114	53	2	67	266
1985-1989	173	363	395		227	1,126
1990-1994	249	685	731		135	1,748
1995	89	168	150		13	413
1996	91	191	132		9	410
1997	95	274	127		9	498
1998	115	379	120		6	609
1999	91	417	123		11	629
2000	107	484	125		9	717
2001	38	486	79		8	607
2002	64	459	61		2	584
2003	36	511	42		10	595
2004	32	360	8		3	403
Totals	1,239	4,960	2,160	2	528	8,724
Average Age	1995	1997	1994	1982	1989	1996
Percent of Collection	0.60%	2.96%	1.64%	0.00%	0.80%	1.47%

Unique Books Count and Average Age

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

	ACU	APL	HSU	McM	HPU
1600-1699
1700-1799
1800-1899
1900-1909	1	1	1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959		1	1
1960-1969	3	10	6		3
1970-1974	1	20	2		5
1975-1979	2	27	3		11
1980-1984	26	99	47	1	58
1985-1989	116	319	355		202
1990-1994	151	601	668		113
1995	44	157	141		10
1996	56	168	119		4
1997	57	253	120		4
1998	83	350	107		4
1999	58	372	96		7
2000	37	430	113		6
2001	8	405	71		5
2002	24	349	56
2003	7	415	38		8
2004	6	259	8		2
Totals	680	4,236	1,952	1	442
Average Age	1994	1997	1994	1981	1989

Total Circulation

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

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	306	3	34	2	0	0	345
APL Items	3,247	34,718	940	535	808	7	40,255
HSU Items	3	0	996	4	0	2	1,005
McM Items	0	0	0	0	0	0	0
HPU Items	0	0	0	0	0	0	0
Totals	3,556	34,721	1,970	541	808	9	41,605

Circulation by Item Age

A count of charges and renewals for Compact Disks, 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
1600-1699
1700-1799
1800-1899
1900-1909		29				29
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959		4				4
1960-1969		72	2			74
1970-1974		141	3			144
1975-1979		233				233
1980-1984	7	580	23			610
1985-1989	27	2,218	237			2,482
1990-1994	53	3,716	335			4,104
1995	39	1,024	55			1,118
1996	15	1,207	64			1,286
1997	15	1,689	84			1,788
1998	19	2,116	40			2,175
1999	26	2,760	54			2,840
2000	63	3,258	50			3,371
2001	22	4,645	24			4,691
2002	10	5,701	23			5,734
2003	42	7,260	10			7,312
2004	7	3,602	1			3,610
Totals	345	40,255	1,005	0	0	41,605
Percent of Circulation	0.91%	5.90%	4.13%	0%	0%	5.47%

Non-Circulating Use

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

ACU	APL	HSU	McM	HPU
10	1	992	0	0

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