Coronavirus - Taiwan Open July 2021

It is a number reported maybe by doctors.

Principles of information maintenance for notification, response and follow-up care of serious adverse events after COVID-19 vaccination

Consequences of adverse events:
A. Death: Check this option only if you suspect or cannot rule out the connection between the death of the reported case and vaccination. Do not check this item in the following situations: (1) When the case died after vaccination, but you do not suspect the connection between vaccination and death. (2) The fetus undergoes artificial abortion or spontaneous abortion due to congenital abnormalities.

Death report rates (cases / 100k shots) are
20s 0.0
30s 0.2
40s 1.9
50s 2.2
60s 4.1
70s 8.2
>80 48.2

exactly. Daily or weekly reported numbers of deaths don’t mean much if not anything.

and

I’m not sure the over the same week part, but it seems they compare the reported death numbers with expected death numbers from all-cause mortality rates from their data between 2016–2019 broken down by age and gender.