2011 - 15.9%

The 2011 15.9% is the baseline measurement.

2012 - 15.9%

The 2012 decrease to 15.9% from 2011 represents a 0.0% decrease YoY.

2013 - 15.8%

The 2013 decrease to 15.8% from 2012 represents a -0.1% decrease YoY.

2014 - 15.5%

The 2014 decrease to 15.5% from 2013 represents a -0.3% decrease YoY.

2015 - 14.7%

The 2015 decrease to 14.7% from 2014 represents a -0.8% decrease YoY.

2016 - 14%

The 2016 decrease to 14% from 2015 represents a -0.7% decrease YoY.

2017 - 13.4%

The 2017 decrease to 13.4% from 2016 represents a -0.6% decrease YoY.

2018 - 13.1%

The 2018 decrease to 13.1% from 2017 represents a -0.3% decrease YoY.

2019 - 12.3%

The 2019 decrease to 12.3% from 2018 represents a -0.8% decrease YoY.

2021 - 12.8%

The 2021 increase to 12.8% from 2019 represents a 0.5% increase YoY.

2022 - 12.6%

The 2022 decrease to 12.6% from 2021 represents a -0.2% decrease YoY.

2023 - 12.5%

The 2023 decrease to 12.5% from 2022 represents a -0.1% decrease YoY.