Data from the cia world factbook and nationmaster. com

based on the chart above, which of the following statements about gdp per capita is true?
a.

switzerland had the highest gdp per capita in 2006.
b.

the united states had the highest gdp per capita in 1973.
c.

switzerland had the highest gdp per capita in 1973.
d.

canada had the third-highest gdp per capita in 1973 and 2006.