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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2014/09/30  Number of Organizations 391, Number of records ALL: 1,876,661, Full text 1,390,374]

Content growth   
  
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Number of contents of latest month [2014/9] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 223,874 (16.1%)
Thesis or Dissertation 59,442 (4.3%)
Departmental Bulletin Paper 726,816 (52.3%)
Conference Paper 21,914 (1.6%)
Presentation 5,546 (0.4%)
Book 19,226 (1.4%)
Technical Report 18,426 (1.3%)
Research Paper 31,124 (2.2%)
Article 48,851 (3.5%)
Preprint 370 (0.0%)
Learning Material 4,026 (0.3%)
Data or Dataset 52,418 (3.8%)
Software 28 (0.0%)
Others 178,313 (12.8%)
SUM 1,390,374
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 74.1 %   
Version distribution Input% 71.3 % Full text
Language distribution Input% 93.4 % Full text
NDC distribution Input% 25.3 % Full text
Fileformat distribution Input% 60.9 % Full text