We need the raw annual data which basically removes this noise.
Deaths: 2020: 59,000 [1] 2019: 52,234 [2] 2018: 53,914 [2]
So a 9.4% increase from 2018 to 2020.
By contrast, Sweden had a 5.7% increase. [3]
Slovakia has lockdown and curfew.
Isn't the conclusion here that lockdown in Europe is failure, when with only voluntary measures Sweden was able to achieve a lower death rate?
[1]https://spectator.sme.sk/c/22594536/in-2020-slovakia-suffere... [2]https://countryeconomy.com/demography/mortality/slovakia [3]https://www.statista.com/statistics/525353/sweden-number-of-...
It seems implausible that lockdowns in Slovakia have achieved anything - by contrast lockdown may be contributing to deaths since people are not seeking regular medical care:
https://news.sky.com/story/coronavirus-lockdown-may-have-ind...
As to you new point - you are drawing your conclusions from disparate data sources, whilst ignoring confounding factors (as pointed out by ljf). The data on wikipedia give a less dramatic picture, and after adjusting for population things look even less dramatic (10.0 -> 10.8 per 1000 for Slovakia and 9.0 -> 9.5 for Sweden). I don't think you can draw serious conclusions from such limited data.
To say that Sweden and Swedes took no steps to protect themselves and their communities is baseless - I assume you do not live there? I have friends in Sweden, and the lives they are living are very very different to the friends in Australia and NZ.
You can compare Denmark and Slovakia (similar population size) for 2 different approaches to the 2nd wave, with 2 completely different outcomes. Denmark as a whole has as many people in ICUs as Slovakia has in one hospital.