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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 2.304 139 - 2 -
Biblios 66.077.854 1.204.222 107.952 56.525 16.148
Authorities 72.947.284 1.935.064 146.348 62.401 5.987
Items 91.655.237 1.359.258 177.196 78.405 19.404
Patrons 9.899.632 233.277 22.741 8.468 820
Issues 262.115.195 12.735.926 847.723 224.222 4.140