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This website displays Koha ILS usage statistics. With permission from the libraries, the following data has been collected from their installed systems. Any information not stored anonymously has been allowed by the library.

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Some numbers from the libraries sharing data
Total Largest Standard deviation Average Median
Libraries 824 52 - 1 -
Biblios 40.373.757 1.019.107 102.679 61.172 21.777
Authorities 41.664.880 1.855.429 161.237 63.129 7.583
Items 55.466.283 1.327.902 172.010 84.040 26.457
Patrons 6.345.580 221.943 23.648 9.615 1.278
Issues 165.848.089 11.362.086 885.770 251.285 5.047