I think that this is explained by the testing capacity. The nearly constant new test cases are determined by the number of tests. This applies to the death too. There might be more deaths due to the virus. But they are not counted into the death due to the virus because they did not get the virus test too. Perhaps we should look at the number of deaths minus the expected deaths in 2019 to see actually how many deaths are due to the virus.
I think that this is explained by the testing capacity. The nearly constant new test cases are determined by the number of tests. This applies to the death too. There might be more deaths due to the virus. But they are not counted into the death due to the virus because they did not get the virus test too. Perhaps we should look at the number of deaths minus the expected deaths in 2019 to see actually how many deaths are due to the virus.