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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 2.467 139 - 2 -
Biblios 67.486.442 1.204.222 107.100 56.145 16.181
Authorities 74.743.358 1.935.064 146.055 62.182 6.122
Items 93.447.652 1.359.258 175.345 77.743 19.616
Patrons 10.257.015 236.928 22.913 8.533 790
Issues 270.329.699 12.934.607 856.285 224.900 3.875