Year % of population 2006 1.15741220430747 2007 1.49849827332675 2008 4.89872859343426 2009 2.99794005789444 2011 4.74641787582599 2012 5.32900778003565 2014 3.23220336116451 2015 2.48847301643741 2016 2.28868629644617 2017 2.42188642909325 2018 2.44417165348839 2019 2.62261602675854 2020 2.95232540564266