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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 4,777 652 - 2 -
Biblios 106,380,361 1,830,054 142,339 53,646 10,426
Authorities 104,833,680 3,439,420 171,683 52,866 860
Items 144,477,779 3,223,213 204,926 72,858 12,111
Patrons 16,098,563 440,788 26,719 8,118 417
Issues 407,418,995 13,944,979 926,918 205,456 615