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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 457 libraries sharing data

In total, the 457 libraries have 29,029,394 biblios. The library with the highest amount of biblios has 1,019,107, and the library with the lowest number has 0. The average is 63,382.96.

They have a total of 25,265,459 authorities. The largest number of authorities is 931,240, the smallest number is 0. The average is 55,164.76.

They have a total of 39,247,460 items. The highest amount of items is 1,327,902, the lowest amount is 0. The average is 85,693.14.

They serve a total of 4,684,538 patrons. The highest number of patrons served is 212,165, the lowest number is 0. The average is 10,228.25.

They issue a total of 124,342,346 books. The largest amount of books issued is 9,384,321, the smallest amount is 0. The average is 271,489.84.