It looks to me that there is probably a threshold of patients (different for each country) from which the mortality starts to rise. Reasons behind this might b

It looks to me that there is probably a threshold of patients (different for each country) from which the mortality starts to rise. Reasons behind this might be either institutional or purely statistical that is it might be possible that each country can keep alive at least certain number of critical patients and starts to fail when certain number is exceeded and it is possible that smaller number of patients are not representative enough and do not contain high risk patients (elderly, people with other chronic illness etc). If you look at the recent data then when number of patients approaches 100 then mortality (CFR) exceeds 2%. Only exception seems to be South-Korea. Diamond Princess is not representative because patients are now evacuated and counted under their countries statistics.