26 countries
They are the countries and the years since same-sex couples can get married:
2000: The Netherlands.
2003: Belgium
2005: Canada
2005: Spain
2006: South Africa
2008: Norway
2009: Sweden
2010: Argentina
2010: Portugal
2010: Iceland
2012: Denmark
2013: Uruguay
2013: Brazil
2013: New Zealand
2013: England/ Wales
2013: France
2014: Luxembourg
2014: Scotland
2015: United States
2015: Ireland
2015: Finland
2015: Greenland
2016: Colombia
2017: Malta
2017: Australia
2017: Germany
