Information for pair0074:

UNdata from http://data.un.org

Gross national income (GNI) and life expectancy. 
One can see the GNI per capita as an index how rich a country is. 
The wealth of a country influences the qualtity of the health care system and thus indirectly the life expectancy of its citizens.

x: GNI (Gross national income) per capita for different countries (in US$)

y: life expectancy at birth for different countries


ground truth:
x --> y
