A line graph showing TOPSIS scores by year from 2003 to 2012. The x-axis represents the years ranging from 2003 to 2012. The y-axis represents the TOPSIS scores ranging from 0.35 to 0.60. The TOPSIS score starts at approximately 0.35 in 2003, peaks at approximately 0.60 in 2005, drops to around 0.40 in 2008, and then fluctuates between 0.45 and 0.55 from 2009 to 2012. All values are approximated.