2011 - 13.5%

The 2011 13.5% is the baseline measurement.

2012 - 9.6%

The 2012 decrease to 9.6% from 2011 represents a -3.9% decrease YoY.

2013 - 10.5%

The 2013 increase to 10.5% from 2012 represents a 0.9% increase YoY.

2014 - 10.9%

The 2014 increase to 10.9% from 2013 represents a 0.4% increase YoY.

2015 - 9.7%

The 2015 decrease to 9.7% from 2014 represents a -1.2% decrease YoY.

2016 - 11.6%

The 2016 increase to 11.6% from 2015 represents a 1.9% increase YoY.

2017 - 8.1%

The 2017 decrease to 8.1% from 2016 represents a -3.5% decrease YoY.

2018 - 10.8%

The 2018 increase to 10.8% from 2017 represents a 2.7% increase YoY.

2019 - 10.9%

The 2019 increase to 10.9% from 2018 represents a 0.1% increase YoY.

2021 - 9.4%

The 2021 decrease to 9.4% from 2019 represents a -1.5% decrease YoY.

2022 - 10.6%

The 2022 increase to 10.6% from 2021 represents a 1.2% increase YoY.

2023 - 9.2%

The 2023 decrease to 9.2% from 2022 represents a -1.4% decrease YoY.