Statistics

Statistics of views and downloading for each document can be obtained from the record page of each document by clicking the Usage statistics tab in the upper menu.
We consider views to be the access to a DDD document, also the downloading of the full text when this downloading is done from a page other than the full record page.
We consider downloads to be the access to the file that contains the document full text or, when it is not text, the viewing of any other kind of file (pictures, posters…). Downloads can be done from the full record page or directly from a search engine. For those records that contain more than one file, downloads for all files are considered together.
Statistics of views and downloading for each document can be obtained from the record page of each document by clicking the Usage statistics tab in the upper menu.
We consider views to be the access to a DDD document, also the downloading of the full text when this downloading is done from a page other than the full record page.
We consider downloads to be the access to the file that contains the document full text or, when it is not text, the viewing of any other kind of file (pictures, posters…). Downloads can be done from the full record page or directly from a search engine. For those records that contain more than one file, downloads for all files are considered together.


Development of viewing statistics
Year Number of viewings Number of downloads

2018
 
9.311.307 7.410.442

2017
 
5.526.397 4.388.599

2016
 
6.845.315 5.521.288

2015
 
4.946.127 3.810.011

2014
 
3.920.166 3.503.731

2013
 
3.816.753 3.356.394
 
Growth of the collection
Year Number of documents Growth rate compared to the previous year

2018
 
178.815 7'6%

2017
 
165.064 9’3%

2016
 
151.042 13’8%

2015
 
132.715 12’5%

2014
 
117.875 13%

2013
 
101.839 12%
 
Number of viewings for each collection
Collections Number of viewings Percentage compared to DDD total number of viewings

Articles
 
3.770.041 39’06%

Research literature
 
2.865.203 29’69%

Graphic documents
 
578.952 6%

Personal archives
 
480.124 4’97%

Meetings and congresses
 
82.937 0’86%

Books and collections
 
658.207 6’82%

Course materials
 
477.643 4’95%

Learning materials
 
319.060 3’31%

Periodical publications
 
419.514 4’35%

Total
 
9.651.681 100%