Compact Discs

Volume, Title, and Unique Books data collected on May 31, 2011.
Circulation statistics for the ALC fiscal year ending May 31, 2011.

Volume Count and Average Age

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

ACUAPLHSU McMHPUALC
1400-1699      
1700-1799      
1800-1899      
1900-1909341 210
1910-1919      
1920-1929      
1930-1939      
1940-1949      
1950-19595 4  9
1960-196914117 335
1970-197423184 550
1975-1979242513 1173
1980-1984838464 71302
1985-1989383346530 2671,526
1990-19946336571,084 2332,607
1995-19991,1791,3961,017 783,670
2000-20041,4933,366867 835,809
2005642960217 81,827
20065201,040329 31,892
20073171,088188 91,602
20083721,073357 101,812
20094061,197163 91,775
20102178917  1,115
2011 215   215
Totals6,31412,3714,852079224,329
Average Age200020031998NA19912001
Percent of
Collection		2.03%3.90%2.82%0%0.98%2.38%

Title Count and Average Age

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

ACUAPLHSU McMHPUALC
1400-1699      
1700-1799      
1800-1899      
1900-1909221 27
1910-1919      
1920-1929      
1930-1939      
1940-1949      
1950-19592 4  6
1960-19691197 330
1970-197411154 534
1975-1979132312 1159
1980-1984557662 69250
1985-1989250305488 2471,251
1990-1994384586981 1802,062
1995-19996981,252875 642,809
2000-20046602,618752 454,026
2005231678165 81,075
2006302693305 31,296
2007175680132 8991
2008164676245 91,089
200916573986 9996
2010435307  580
2011 160   160
Totals3,1669,0424,126066316,721
Average Age199920021997NA19902000
Percent of
Collection		1.27%4.40%2.70%0%0.90%2.42%

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.

ACUAPLHSU McMHPU
1400-1699     
1700-1799     
1800-1899     
1900-1909111 2
1910-1919     
1920-1929     
1930-1939     
1940-1949     
1950-1959  4  
1960-1969587 3
1970-19744124 5
1975-197952011 11
1980-1984286756 58
1985-1989148263436 217
1990-1994178513876 152
1995-19993431,123764 44
2000-20042262,035649 29
200588469139 7
2006125453283 3
200775410118 1
200883403213 4
20098042069 7
2010342717  
2011 120   
Totals1,4236,5883,6370543
Average Age199920021997NA1990

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
ACUAPLHSU McMCJCHPUTotal
ACU Items41150000416
APL Items2,10748,6589704550552,195
HSU Items201,6035001,610
McM Items0000000
HPU Items0000033
Totals2,52048,6632,5734600854,224

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.

ACUAPLHSU McMHPUALC
1400-1699      
1700-1799      
1800-1899      
1900-1909 2   2
1910-1919      
1920-1929      
1930-1939      
1940-1949      
1950-19592 1  3
1960-1969 513  54
1970-1974 502  52
1975-1979 411  42
1980-19841216028  200
1985-198912918192  1,122
1990-1994531,446397  1,896
1995-1999913,402311  3,804
2000-200417611,082277  11,535
200563,80087  3,893
2006144,50961  4,584
2007135,34487  5,444
2008285,932134 16,095
200988,47929 28,518
201016,633   6,634
2011 346   346
Totals41652,1951,6100354,224
Percent of
Circulation		1.27%7.12%8.04%0%0.09%6.82%

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.

ACUAPLHSU McMHPU
17047805
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