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. 

Mortality for different age groups 2019 and 2020  is compared in the next plot. Dotted line corresponds to 2019 and solid line is 2020.