Corona covid19 analysis of the deaths

Corona (covid19) is the plague of today since a week. Out of curiosity I downloaded a dataset from the datascience competition kaggle. The dataset is not very big but I found out that the mortality rate is 3%. Most of the dead are elderly people. Average is 70. I think the reason behind the measures which governments are taking is for instance that 3% of the Dutch population is 510.000 people. The percentage is low but total count is high if enough people are becoming sick. De used Python code can be found at my gitlab account.