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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 478 libraries sharing data

In total, the 478 libraries have 30,314,597 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 62,375.71.

They have a total of 26,623,014 authorities. The largest number of authorities is 931,240, the smallest number is 0. The average is 54,779.86.

They have a total of 41,102,928 items. The highest amount of items is 1,327,902, the lowest amount is 0. The average is 84,573.93.

They serve a total of 5,025,740 patrons. The highest number of patrons served is 214,227, the lowest number is 0. The average is 10,341.03.

They issue a total of 131,267,261 books. The largest amount of books issued is 9,384,321, the smallest amount is 0. The average is 270,097.24.