Germany

This graph is helpful for explaining why Germany's numbers look so good. Because they are testing just about everyone, they know everyone who is infected.  Since many people have only mild or no symptoms, that gives a representative sample. That's one reason why Germany's mortality rate is so low. The deaths are out of a much larger number of infected.

However, the overall numbers are lower, too, because they have a much better idea who is infected, so that those people can isolate and not spread the illness.

Germany, Taiwan and South Korea have shown what every other country should have done. They aren't dictatorships locking down whole cities.  They are just competent governments who made good choices in a timely manner.