Comments:

• Marked slowdown in 2012 due to bad weather
• 2015 is the strongest year to date
• 2015 was boosted by particularly strong November and December data
• this November was back to 2014 levels, but although December was better than November, it fell short of the 2015 figure
• 2016 saw a rise of 0.2% on 2015 in spite of the weaker year end