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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 2.453 139 - 2 -
Biblios 68.293.095 1.204.222 108.285 56.628 16.108
Authorities 77.015.213 1.935.064 149.324 63.860 6.311
Items 95.416.200 1.359.258 178.951 79.118 19.067
Patrons 10.648.825 246.502 24.277 8.830 800
Issues 280.404.292 13.044.980 876.362 232.508 4.124