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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2016/12/31  Number of Organizations 586, Number of records ALL: 2,417,636, Full text 1,841,707]

Content growth   
  
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Number of contents of latest month [2016/12] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 269,274 (14.6%)
Thesis or Dissertation 91,142 (4.9%)
Departmental Bulletin Paper 980,965 (53.3%)
Conference Paper 32,766 (1.8%)
Presentation 9,993 (0.5%)
Book 22,282 (1.2%)
Technical Report 42,053 (2.3%)
Research Paper 59,360 (3.2%)
Article 53,926 (2.9%)
Preprint 558 (0.0%)
Learning Material 4,320 (0.2%)
Data or Dataset 53,548 (2.9%)
Software 31 (0.0%)
Others 221,489 (12.0%)
SUM 1,841,707
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.2 %   
Version distribution Input% 67.1 % Full text
Language distribution Input% 93.1 % Full text
NDC distribution Input% 20.7 % Full text
Fileformat distribution Input% 51.2 % Full text