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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 5,501 2,342 - 4 -
Biblios 85,000,448 1,204,222 117,551 59,193 15,716
Authorities 90,843,965 1,935,064 153,783 63,262 5,494
Items 122,847,022 1,656,158 202,185 85,548 18,846
Patrons 13,752,407 261,859 26,985 9,577 834
Issues 346,564,344 13,763,857 939,141 241,340 3,383