Lol I have no idea, but maybe our women nag more than those in other countries? Hmm... Or maybe the men spend too much time in bars?
Kidding of course.
I think it's mostly the combination of too much work in too many hours and/or having to raise small children at the same time. And since the churches are getting more empty by the day -serious lack of young religious people... and the elderly, well...- people are less afraid of the judgement by 'the community'.
Divorce is simply a better and more accessable option as opposed to 20 or 30 years ago. Better at least than staying together for decades just out of habit.
Sad but true IMO. It would be better for all if people just had more time for each other instead of chasing cr*p you don't need. Over here burn-outs are getting more and more common. Not exactly healty for a relationship. Ask me how I know.
Luckily I'm not divorced (yet).