Two possibilities.
1. Strong arm tactics to suppress exciting campaigners.
2. No exciting campaigners to be had.
IMO, a lack of voting is due to a lack of turmoil. In a way, that is good for a REPUBLIC. It stops a lot of emotionalism and the only people who vote are those who really care. People who care are more informed.
I have some further interesting freepmail to send you in the near future.
America is different. The democratic components of the US Constitution were put into the Constitution not to create "democracy", but as a way to protect liberty. The goal is individual freedom, the means was democracy. Americans expect to create our wealth and focus most of our attention on things outside of politics and democracy, expect of course for the lefties, who think the source of everything is government. Unfortunately, they never seem to get disillusioned and grow up. Democratic Party pols have been getting the votes of Black Americans for decades now promising goodies through government and blaming racist Republicans. There seems to be no end in sight to this.