2011 - 14.4%

The 2011 14.4% is the baseline measurement.

2012 - 15.8%

The 2012 increase to 15.8% from 2011 represents a 1.4% increase YoY.

2013 - 13%

The 2013 decrease to 13% from 2012 represents a -2.8% decrease YoY.

2014 - 14.5%

The 2014 increase to 14.5% from 2013 represents a 1.5% increase YoY.

2015 - 13.9%

The 2015 decrease to 13.9% from 2014 represents a -0.6% decrease YoY.

2016 - 13.4%

The 2016 decrease to 13.4% from 2015 represents a -0.5% decrease YoY.

2017 - 15.9%

The 2017 increase to 15.9% from 2016 represents a 2.5% increase YoY.

2018 - 13.4%

The 2018 decrease to 13.4% from 2017 represents a -2.5% decrease YoY.

2019 - 10.1%

The 2019 decrease to 10.1% from 2018 represents a -3.3% decrease YoY.

2021 - 13.1%

The 2021 increase to 13.1% from 2019 represents a 3.0% increase YoY.

2022 - 11.5%

The 2022 decrease to 11.5% from 2021 represents a -1.6% decrease YoY.

2023 - 10.5%

The 2023 decrease to 10.5% from 2022 represents a -1.0% decrease YoY.