2011 - 11.3%

The 2011 11.3% is the baseline measurement.

2012 - 12.4%

The 2012 increase to 12.4% from 2011 represents a 1.1% increase YoY.

2013 - 12.9%

The 2013 increase to 12.9% from 2012 represents a 0.5% increase YoY.

2014 - 11.6%

The 2014 decrease to 11.6% from 2013 represents a -1.3% decrease YoY.

2015 - 11.5%

The 2015 decrease to 11.5% from 2014 represents a -0.1% decrease YoY.

2016 - 11.7%

The 2016 increase to 11.7% from 2015 represents a 0.2% increase YoY.

2017 - 11.5%

The 2017 decrease to 11.5% from 2016 represents a -0.2% decrease YoY.

2018 - 9.9%

The 2018 decrease to 9.9% from 2017 represents a -1.6% decrease YoY.

2019 - 9.3%

The 2019 decrease to 9.3% from 2018 represents a -0.6% decrease YoY.

2021 - 9%

The 2021 decrease to 9% from 2019 represents a -0.3% decrease YoY.

2022 - 11.5%

The 2022 increase to 11.5% from 2021 represents a 2.5% increase YoY.

2023 - 9%

The 2023 decrease to 9% from 2022 represents a -2.5% decrease YoY.