>

Well if you say you don't trust the government in China you get reeducated until you do, so I'm not sure I really trust those figures.  None of those 3 are part of the data set I commented on.  Also none of those countries are particularly homogeneous.
The OECD publishes data concerning trust of the public in the government in general. Unsurprisingly, trust in government is highest in rich countries with multi-party systems, low corruption and long democratic traditions. It tends to be lower in poorer countries, two-party systems and new(er) democracies or authoritarian states with relatively higher corruption. >

Another thing the higher rated countries have in common are they're small.  The US has so many competing interests that no matter who gets elected and how effectively they govern a good 40% of the country is going to despise the government. >

The countries low on the list are also mostly small. Turns out that the US is pretty large compared to most other countries. >

Look at the bottom 10 and top 10 (granted 11th and 12th highest are "large compared the the 10 that precede then).  None of those top 10 break 10M in population, the bottom 10 have several large countries, and the ones that are small tend to be former soviet states.  Obviously size isn't the only factor at play. But a small population is likely to have common values and a similar view of the role their government should play.