Dataset of international marriages

Question

I'm looking for a dataset containing the following:

• for each country, number of weddings according to the spouses' nationalities
• if possible, yearly data and % of divorces.

For example, here is such dataset about Koreans:

Answer 1

The United Nations Statistics Divisions publishes tables on marriages per country. While they do not break it down by nationality, they do provide a variety of demographic data.

http://unstats.un.org/unsd/Demographic/sconcerns/mar/mar2.htm

The BLS also publishes tables on marriage that contain some ethnicity information for the US:

http://www.bls.gov/opub/mlr/2013/article/marriage-and-divorce-patterns-by-gender-race-and-educational-attainment.htm

Answer 2

Eurostat has data for marriages and divorces by broad group of citizenship.

In addition, marriages and divorces are also available by country of birth.