IRUS-ANZ has moved. From January 2022, new monthly statistics will only be added to the IRUS R5 service. This site is archived. All statistics up to December 2021 will remain available on this site.

DOI Summary Statistics

This table shows, for each item type across all repositories where DOIs are available in the metadata that we harvest, the numbers of items of that type downloaded from repositories since joining IRUS-ANZ and for each item type, the numbers and percentages that have DOIs available.

Download this table as a PDF

Number of DOIs by item type

ItemType Items DOIs % with DOIs
Art/Design Item 818 7 0.9
Article 111,200 94,261 84.8
Book 5,386 502 9.3
Book Section 6,544 1,832 28.0
Conference Papers/Posters 10,183 2,631 25.8
Conference Proceedings 2,030 432 21.3
Conference or Workshop Item - Other 1,434 219 15.3
Dataset 1,835 1,723 93.9
Image 11,894 257 2.2
Learning Object 112 46 41.1
Music/Musical Composition 154 6 3.9
Other 878 20 2.3
Patent 50 3 6.0
Performance 567 2 0.4
Preprint 719 55 7.6
Report 4,785 368 7.7
Show/Exhibition 109 11 10.1
Text 8,040 5,109 63.5
Thesis or Dissertation 54,777 14,584 26.6
Unknown 33,238 23 0.1
Working Paper 2,397 9 0.4
Jisc logo Cranfield logo CAVAL logo