Study the given graph and answer the question that follows.

 For which of the following years was the percentage rise/fall in production from the previous year maximum for country R?

2015

⇒ Percentage fall in production of R in 2012 = \(\frac{10 }{40}\) × 100 = 25%

⇒ Percentage rise in production of R in 2013 = \(\frac{20 }{30}\) × 100 = 66.67%

⇒ Percentage fall in production of R in 2014 = \(\frac{30 }{50}\) × 100 = 60%

⇒ Percentage fall in production of R in 2015 = \(\frac{30 }{20}\) × 100 = 150%

⇒ So , Percentage fall in production of R is maximum  for year 2015 i.e. 150%