2011 - 14.9%

The 2011 14.9% is the baseline measurement.

2012 - 14.2%

The 2012 decrease to 14.2% from 2011 represents a -0.7% decrease YoY.

2013 - 15.2%

The 2013 increase to 15.2% from 2012 represents a 1.0% increase YoY.

2014 - 15.1%

The 2014 decrease to 15.1% from 2013 represents a -0.1% decrease YoY.

2015 - 15.5%

The 2015 increase to 15.5% from 2014 represents a 0.4% increase YoY.

2016 - 19.1%

The 2016 increase to 19.1% from 2015 represents a 3.6% increase YoY.

2017 - 14%

The 2017 decrease to 14% from 2016 represents a -5.1% decrease YoY.

2018 - 18.1%

The 2018 increase to 18.1% from 2017 represents a 4.1% increase YoY.

2019 - 16.3%

The 2019 decrease to 16.3% from 2018 represents a -1.8% decrease YoY.

2021 - 14.8%

The 2021 decrease to 14.8% from 2019 represents a -1.5% decrease YoY.

2022 - 16.1%

The 2022 increase to 16.1% from 2021 represents a 1.3% increase YoY.

2023 - 13.9%

The 2023 decrease to 13.9% from 2022 represents a -2.2% decrease YoY.