Based on a Freedom of Information request to Police Scotland published on 1st September 2020:
Data collated at 07/07/2020 provides that between 23/03/2019 and 23/06/2019 there were 1702 such assaults on (all) emergency workers and 1760 in the same period in 2020.
The increased rate was 3.4%
In England and Wales, based on a 4-week period ending on 2nd of August there was a 31% increase:
No raw data was provided.
These statistics are, of course, not strictly comparable but are nevertheless reasonably suggestive of a sharp difference.