List of countries by income equality - Gini coefficient, before taxes and transfers

Reference 1: , Australia, Austria, Belgium, Canada, Chile, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Israel, Italy, Japan, Luxembourg, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Slovak Republic, Slovenia, South Korea, Spain, Sweden, Switzerland, Turkey, United Kingdom and United States.

Reference 2: mid-70s, mid-80s, around 1990, mid-90s, around 2000, mid-2000s and Late 2000s.

Source: http://en.wikipedia.org/wiki/List_of_countries_by_income_equality