(Less / Fewer) money was spent on TV advertising than on social media.
Less
(Less/Fewer) smart phones were bought in 2015 than in 2016.
Fewer
There were (less/fewer) students choosing to travel by train than by car.
fewer
5% (less/fewer) oil was consumed in 2013 than in 2014.
Less
(Less/Fewer) students graduated from York University in 2009 than in 2007.
Fewer
