Computer Science

Volume, Title, and Unique Books data collected on June 4, 2002.
Circulation statistics for the ALC fiscal year ending May 31, 2002.

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	1	54	24	1	95
1970-1974	21	5	31	39	9	105
1975-1979	28	2	46	50	9	135
1980-1984	81	23	45	217	45	411
1985-1989	148	66	73	349	70	706
1990-1994	125	163	33	125	48	494
1995	44	61	2	11	2	120
1996	45	58	2	14	10	129
1997	38	52	8	25	5	128
1998	37	87	13	18	9	164
1999	33	136	7	7	7	190
2000	23	86	4	1	6	120
2001	15	51	4	2	4	76
2002		9		1	1	11
Totals	655	800	323	885	226	2,889
Average Age	1990	1995	1982	1986	1988	1989
Percent of Collection	0.31%	0.46%	0.23%	0.67%	0.33%	0.40%

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	1	38	21	1	68
1970-1974	21	5	31	37	7	85
1975-1979	27	2	46	50	9	124
1980-1984	81	23	45	212	44	370
1985-1989	145	66	72	331	70	638
1990-1994	119	147	33	123	47	436
1995	40	55	2	11	2	105
1996	41	54	2	14	10	112
1997	35	48	8	24	5	105
1998	34	75	13	18	9	138
1999	30	106	6	7	7	147
2000	22	71	4	1	6	99
2001	13	44	4	2	4	65
2002		6		1	1	8
Totals	623	703	305	854	222	2,505
Average Age	1989	1995	1982	1986	1988	1989
Percent of Collection	0.34%	0.54%	0.25%	0.71%	0.36%	0.49%

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		24	14
1970-1974	14	5	22	22	4
1975-1979	19		41	40	8
1980-1984	66	20	32	178	28
1985-1989	117	56	47	290	57
1990-1994	98	125	22	108	31
1995	29	45	2	8	2
1996	32	43	1	8	6
1997	24	37	4	13	4
1998	20	57	10	14	5
1999	18	74	3	5	5
2000	20	53	1	1	3
2001	11	37	1	1	3
2002		3		1	1
Totals	479	555	210	704	157
Average Age	1989	1995	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	202	19	2	8	3	0	234
APL Items	43	1,729	26	47	8	0	1,853
HSU Items	1	1	36	4	0	0	42
McM Items	4	9	3	43	0	0	59
HPU Items	0	0	0	0	0	2	2
Totals	250	1,758	67	102	11	2	2,190

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			5		6
1970-1974	3	2		3		8
1975-1979	6		2			8
1980-1984	13	10	2	4		29
1985-1989	15	23	5	24		67
1990-1994	32	124	3	6		165
1995	20	70	1			91
1996	20	107		5		132
1997	21	99	8	5		133
1998	29	268	16	4		317
1999	41	586		2	2	631
2000	28	341	5			374
2001	11	211		1		223
2002		12				12
Totals	240	1,853	42	59	2	2,196
Percent of Circulation	0.55%	0.51%	0.18%	0.50%	0.03%	0.49%

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
109	0	8	12	0

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