With just days to go before the end of the second quarter, Europe’s primary bond market has slowed from strong levels of issuance in April and May to the quietest June in more than a decade, as economic and political uncertainties loom heading into the summer.

Issuers in Europe had sold $984.8 billion worth of bonds globally by the end of May, according to data firm Dealogic, a rise of 11% year-on-year that was largely due to very strong supply in April and May.