Anyone have interesting conclusions to this chart? I’m struggling to come up w meaningful long-term positive implications.

The word marriage is decided by a legal process/documentation. The lack of a marriage doesn't mean these types of relationships aren't happening. 

I think younger generations are reimagining what the right relationships look like for themselves. And maybe that comes with relationship documentation and maybe not.

For some, religious requirements may also play a role in the decision to marry or not.

Positive?? implications - marriage isn't required to thrive. People can develop the lives that are most fulfilling to them - including marriage or not. Society expands beyond status quo/rigid views and explores other types of relationships/ways of togetherness.