SCB

Statistiska centralbyrån (SCB) publishes among many other things mortality statistics, retrieved from Table 1 in the excel sheet available here at SCB.

The figure below shows the total number of mortalities week by week from 2015 to today. The years 2015-2019 are used to form a confidence bound. Over-mortality 10-20% occurs regularly in the spring. In April 2020, over-mortality was about 50% which levelled out to normal valued during the summer. 

As a comparison, the figure below shows how the total number of deaths has evolved for the past 50 years.