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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 937 52 - 1 -
Biblios 42.974.598 1.019.107 99.499 57.376 18.703
Authorities 41.559.628 1.855.429 139.510 55.487 5.187
Items 59.074.337 1.334.050 165.691 78.871 22.650
Patrons 6.687.501 231.665 22.507 8.929 905
Issues 179.946.758 11.647.235 893.785 240.249 4.947