2011 - 14.9%

The 2011 14.9% is the baseline measurement.

2012 - 16.1%

The 2012 increase to 16.1% from 2011 represents a 1.2% increase YoY.

2013 - 17.6%

The 2013 increase to 17.6% from 2012 represents a 1.5% increase YoY.

2014 - 16.1%

The 2014 decrease to 16.1% from 2013 represents a -1.5% decrease YoY.

2015 - 16.7%

The 2015 increase to 16.7% from 2014 represents a 0.6% increase YoY.

2016 - 13.4%

The 2016 decrease to 13.4% from 2015 represents a -3.3% decrease YoY.

2017 - 17.6%

The 2017 increase to 17.6% from 2016 represents a 4.2% increase YoY.

2018 - 14.4%

The 2018 decrease to 14.4% from 2017 represents a -3.2% decrease YoY.

2019 - 14.8%

The 2019 increase to 14.8% from 2018 represents a 0.4% increase YoY.

2021 - 15.4%

The 2021 increase to 15.4% from 2019 represents a 0.6% increase YoY.

2022 - 16.9%

The 2022 increase to 16.9% from 2021 represents a 1.5% increase YoY.

2023 - 14.5%

The 2023 decrease to 14.5% from 2022 represents a -2.4% decrease YoY.