We don’t actually know any real numbers yet.
All we have are chicom numbers.
And it looks like they might be cooked:
https://mobile.twitter.com/juanli324/status/1225265123201142784
Translation of your link, Google translate.
Amazing virus, still a master of mathematics
January 30: 170 deaths / confirmed 7821 = 2.1%,
January 31: 213 deaths / confirmed 9800 = 2.1%,
February 1: 259 deaths / diagnosed 11880 = 2.1%,
February 2: 304 deaths / confirmed 14401 = 2.1%,
February 3: 361 deaths / confirmed 17238 = 2.1%,
February 4: 429 deaths / confirmed 20471 = 2.1%,
February 5: 493 deaths / confirmed 24441 = 2.1%
February 6: 564 deaths / confirmed 28605 = 2.1%