2011 - 14.8%

The 2011 14.8% is the baseline measurement.

2012 - 13.4%

The 2012 decrease to 13.4% from 2011 represents a -1.4% decrease YoY.

2013 - 14.9%

The 2013 increase to 14.9% from 2012 represents a 1.5% increase YoY.

2014 - 16.8%

The 2014 increase to 16.8% from 2013 represents a 1.9% increase YoY.

2015 - 16.1%

The 2015 decrease to 16.1% from 2014 represents a -0.7% decrease YoY.

2016 - 13.7%

The 2016 decrease to 13.7% from 2015 represents a -2.4% decrease YoY.

2017 - 12.7%

The 2017 decrease to 12.7% from 2016 represents a -1.0% decrease YoY.

2018 - 12.3%

The 2018 decrease to 12.3% from 2017 represents a -0.4% decrease YoY.

2019 - 10.1%

The 2019 decrease to 10.1% from 2018 represents a -2.2% decrease YoY.

2021 - 9.7%

The 2021 decrease to 9.7% from 2019 represents a -0.4% decrease YoY.

2022 - 12.9%

The 2022 increase to 12.9% from 2021 represents a 3.2% increase YoY.

2023 - 13%

The 2023 increase to 13% from 2022 represents a 0.1% increase YoY.