2011 - 10.7%

The 2011 10.7% is the baseline measurement.

2012 - 10.9%

The 2012 increase to 10.9% from 2011 represents a 0.2% increase YoY.

2013 - 11.5%

The 2013 increase to 11.5% from 2012 represents a 0.6% increase YoY.

2014 - 11.1%

The 2014 decrease to 11.1% from 2013 represents a -0.4% decrease YoY.

2015 - 10.6%

The 2015 decrease to 10.6% from 2014 represents a -0.5% decrease YoY.

2016 - 10.6%

The 2016 decrease to 10.6% from 2015 represents a 0.0% decrease YoY.

2017 - 9%

The 2017 decrease to 9% from 2016 represents a -1.6% decrease YoY.

2018 - 7.3%

The 2018 decrease to 7.3% from 2017 represents a -1.7% decrease YoY.

2019 - 9.1%

The 2019 increase to 9.1% from 2018 represents a 1.8% increase YoY.

2021 - 9%

The 2021 decrease to 9% from 2019 represents a -0.1% decrease YoY.

2022 - 9.5%

The 2022 increase to 9.5% from 2021 represents a 0.5% increase YoY.

2023 - 8.5%

The 2023 decrease to 8.5% from 2022 represents a -1.0% decrease YoY.