You claimed that we did that in response to being scared by “the disastrous herd immunity strategy”. Week by week data (reported on in the weekly reports here: https://www.folkhalsomyndigheten.se/folkhalsorapportering-st...) shows that it happened as soon as restrictions were announced though, so that doesn’t actually support your thesis.
This is a stronger effect than in many other countries with official measures in place, e.g. Germany has -21% and was at -8% before case numbers started spiking again a few weeks ago.
Here you can see that in september 2020 road traffic accidents fell sharply from the september average of the previous years.
https://www.ssb.no/en/vtu