The executive summary of ISSN IC 2019 Activity Report is available in the 6 UN official languages on our institutional website: https://www.issn.org/wp-content/uploads/2020/06/ISSN_RAPPORT_ACTIVITE_2019_ENGL_final10June.pdf
Recently published report about digital scholarly infrastructure mentions ISSN services
Educopia Institute has just published a report entitled « Bibliographic Scan of Digital Scholarly Communication Infrastructure » (May 2020) and the author David W. Lewis mentions ROAD and Keepers Registry as essential parts of the global scholarly environment. https://educopia.org/wp-content/uploads/2020/05/Lewis-Bibliographic-Scan_FULL.pdf
New Keepers Registry statistics available through the ISSN Portal
Since December 2019, Keepers Registry (https://keepers.issn.org/) has been provided through the ISSN Portal (https://portal.issn.org). Keepers Registry aggregates archival status information regarding continuing resources supplied by 13 archiving agencies.
Building upon this achievement, the ISSN International Centre has just developed and published free statistics, i.e. the number of archived resources per archiving agency, the level of archiving stewardship, the number of resources under exclusive stewardship, and the distribution of resources per publisher and per archiving agency. You will find them at https://keepers.issn.org/stats.