A study on Social Research can be found here: http://www.gesellschaftlicher-zusammenhalt.de/en/ (in English)

'Social cohesion is generally agreed to be valuable in and of itself – as the manifestation of an intact, solidarity-based society. It is a desirable quality that makes a society liveable and sustainable...
The Bertelsmann Stiftung launched the Social Cohesion Radar in order to promote public debate, but also to encourage research in this area...'


Looking at the overview table - http://www.gesellschaftlicher-zusamm...cial-cohesion/ - it is quite good here

Some lines from NZ's country profile there:
'New Zealand ... is in the top tier for acceptance of diversity, perception of fairness, and solidarity and helpfulness...'