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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 3,633 647 - 3 -
Biblios 80,836,386 1,204,222 113,774 57,576 15,174
Authorities 88,981,598 1,935,064 152,769 63,377 5,585
Items 114,726,238 1,640,647 190,101 81,714 18,471
Patrons 12,829,408 261,211 25,884 9,138 792
Issues 335,830,155 13,481,803 903,966 239,195 3,531