2011 - 18.3%

The 2011 18.3% is the baseline measurement.

2012 - 17.6%

The 2012 decrease to 17.6% from 2011 represents a -0.7% decrease YoY.

2013 - 14.8%

The 2013 decrease to 14.8% from 2012 represents a -2.8% decrease YoY.

2014 - 12.6%

The 2014 decrease to 12.6% from 2013 represents a -2.2% decrease YoY.

2015 - 15%

The 2015 increase to 15% from 2014 represents a 2.4% increase YoY.

2016 - 13.1%

The 2016 decrease to 13.1% from 2015 represents a -1.9% decrease YoY.

2017 - 10.5%

The 2017 decrease to 10.5% from 2016 represents a -2.6% decrease YoY.

2018 - 10.8%

The 2018 increase to 10.8% from 2017 represents a 0.3% increase YoY.

2019 - 12.2%

The 2019 increase to 12.2% from 2018 represents a 1.4% increase YoY.

2021 - 10.9%

The 2021 decrease to 10.9% from 2019 represents a -1.3% decrease YoY.

2022 - 12.4%

The 2022 increase to 12.4% from 2021 represents a 1.5% increase YoY.

2023 - 13.4%

The 2023 increase to 13.4% from 2022 represents a 1.0% increase YoY.