2011 - 18.5%

The 2011 18.5% is the baseline measurement.

2012 - 19.7%

The 2012 increase to 19.7% from 2011 represents a 1.2% increase YoY.

2013 - 15.5%

The 2013 decrease to 15.5% from 2012 represents a -4.2% decrease YoY.

2014 - 17.4%

The 2014 increase to 17.4% from 2013 represents a 1.9% increase YoY.

2015 - 22.1%

The 2015 increase to 22.1% from 2014 represents a 4.7% increase YoY.

2016 - 14.2%

The 2016 decrease to 14.2% from 2015 represents a -7.9% decrease YoY.

2017 - 13.1%

The 2017 decrease to 13.1% from 2016 represents a -1.1% decrease YoY.

2018 - 14.4%

The 2018 increase to 14.4% from 2017 represents a 1.3% increase YoY.

2019 - 10.6%

The 2019 decrease to 10.6% from 2018 represents a -3.8% decrease YoY.

2021 - 13%

The 2021 increase to 13% from 2019 represents a 2.4% increase YoY.

2022 - 17.9%

The 2022 increase to 17.9% from 2021 represents a 4.9% increase YoY.

2023 - 18.3%

The 2023 increase to 18.3% from 2022 represents a 0.4% increase YoY.