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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/06/30  Number of Organizations 631, Number of records ALL: 2,638,613, Full text 2,006,605]

Content growth   
  
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Number of contents of latest month [2017/6] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 281,917 (14.0%)
Thesis or Dissertation 101,316 (5.0%)
Departmental Bulletin Paper 1,063,954 (53.0%)
Conference Paper 34,995 (1.7%)
Presentation 11,375 (0.6%)
Book 32,475 (1.6%)
Technical Report 42,814 (2.1%)
Research Paper 61,896 (3.1%)
Article 55,840 (2.8%)
Preprint 618 (0.0%)
Learning Material 4,558 (0.2%)
Data or Dataset 53,595 (2.7%)
Software 46 (0.0%)
Others 261,206 (13.0%)
SUM 2,006,605
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.0 %   
Version distribution Input% 65.4 % Full text
Language distribution Input% 93.2 % Full text
NDC distribution Input% 19.4 % Full text
Fileformat distribution Input% 47.3 % Full text