Computer Science

Volume, Title, and Unique Books data collected on June 27, 2001.
Circulation statistics for the ALC fiscal year ending May 31, 2001.

Volume Count and Average Age

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

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909				1		1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2		1	1		4
1960-1969	15	2	54	24	1	96
1970-1974	21	5	31	39	9	105
1975-1979	28	3	46	49	9	135
1980-1984	81	30	45	217	45	418
1985-1989	149	85	74	348	70	726
1990-1994	122	181	33	125	48	509
1995	40	69	2	11	2	124
1996	43	62	3	14	10	132
1997	29	54	8	25	5	121
1998	27	93	14	18	9	161
1999	28	136	6	7	7	184
2000	17	85	1	1	2	106
2001	2	21		1	1	25
2002
Totals	604	826	318	881	218	2,847
Average Age	1989	1995	1981	1986	1988	1989
Percent of Collection	0.29%	0.46%	0.23%	0.67%	0.33%	0.39%

Title Count and Average Age

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

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909				1		1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2		1	1		4
1960-1969	13	2	38	21	1	69
1970-1974	21	5	31	37	7	85
1975-1979	27	3	46	49	9	124
1980-1984	81	30	45	212	44	376
1985-1989	146	85	73	330	70	651
1990-1994	116	164	33	123	47	449
1995	37	60	2	11	2	106
1996	39	59	3	14	10	115
1997	26	50	8	24	5	98
1998	26	80	14	18	9	136
1999	26	105	5	7	7	143
2000	16	69	1	1	2	88
2001	2	18		1	1	22
2002
Totals	578	730	300	850	214	2,467
Average Age	1989	1994	1982	1986	1988	1989
Percent of Collection	0.32%	0.54%	0.25%	0.71%	0.35%	0.48%

Unique Books Count and Average Age

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

	ACU	APL	HSU	McM	HPU
1600-1699
1700-1799
1800-1899
1900-1909				1
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959	2
1960-1969	9	1	23	14
1970-1974	14	5	22	22	4
1975-1979	19	1	41	39	8
1980-1984	65	27	32	177	28
1985-1989	116	68	48	286	55
1990-1994	95	138	22	107	32
1995	27	47	2	7	2
1996	30	48	2	8	5
1997	15	39	4	13	4
1998	14	61	11	14	5
1999	18	74	2	5	5
2000	15	54	1	1	1
2001	2	15		1	1
2002
Totals	441	578	210	695	150
Average Age	1989	1994	1982	1986	1988

Total Circulation

A count of charges and renewals for Computer Science. This count only includes circulation of bound monographs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	152	18	6	5	0	1	182
APL Items	92	2,068	33	26	3	0	2,222
HSU Items	1	1	17	4	0	0	23
McM Items	4	3	1	51	0	1	60
HPU Items	0	0	0	3	0	11	14
Totals	249	2,090	57	89	3	13	2,501

Circulation by Item Age

A count of charges and renewals for Computer Science, broken down by item age and item owner. This count only includes circulation of bound monographs, 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
1910-1919
1920-1929
1930-1939
1940-1949
1950-1959
1960-1969		1		1		2
1970-1974	3	2		1		6
1975-1979	7	1	1			9
1980-1984	6	24	1	6	1	38
1985-1989	21	56	1	26	1	105
1990-1994	18	263	8	9	5	303
1995	25	142			1	168
1996	24	227		1	1	253
1997	25	175	7	10		217
1998	22	439	4	4	3	472
1999	21	658	1	2	2	684
2000	10	225				235
2001		9				9
2002
Totals	182	2,222	23	60	14	2,501
Percent of Circulation	0.38%	0.63%	0.09%	0.48%	0.20%	0.56%

Non-Circulating Use

A count of Non-Circulating usage for Computer Science (as recorded by the circulation "NC" command). This count only includes bound monographs.

ACU	APL	HSU	McM	HPU
45	2	10	13	0

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