Police shootings in the US

It's common sense to just about all Australians who aren't libertarians that the large number of police shootings in the US is in substantial part due to police having to be always on edge there that they are dealing with an armed person, whether they be legally armed, or not.  But the international comparisons between US police shootings and that in other countries is even more surprising than I expected:

Police officers in the US shoot and kill nearly 1,000 people a year, according to the Washington Post’s database — far more than other developed countries like the UK, Australia, Japan, and Germany, where police officers might go an entire year without killing more than a dozen people or even anyone at all.

For example, an analysis by the Guardian found that “US police kill more in days than other countries do in years.” Between 1992 and 2011, Australian police shot and killed 94 people. In 2015, US police shot and killed 97 people just in March. These differences are not explained by population, since the US is about 14 times as populous as Australia but, based on the Guardian’s count, has hundreds of times the fatal police shootings.