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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 2,772 139 - 2 -
Biblios 76,034,803 1,204,222 112,604 57,341 15,684
Authorities 82,766,637 1,935,064 148,408 62,418 5,729
Items 106,852,312 1,525,084 184,849 80,582 18,876
Patrons 12,148,437 259,145 25,904 9,162 800
Issues 315,449,344 13,437,773 902,453 237,895 4,033