2011 - 21.3%

The 2011 21.3% is the baseline measurement.

2012 - 24.9%

The 2012 increase to 24.9% from 2011 represents a 3.6% increase YoY.

2013 - 19.9%

The 2013 decrease to 19.9% from 2012 represents a -5.0% decrease YoY.

2014 - 20%

The 2014 increase to 20% from 2013 represents a 0.1% increase YoY.

2015 - 18%

The 2015 decrease to 18% from 2014 represents a -2.0% decrease YoY.

2016 - 23.1%

The 2016 increase to 23.1% from 2015 represents a 5.1% increase YoY.

2017 - 16.9%

The 2017 decrease to 16.9% from 2016 represents a -6.2% decrease YoY.

2018 - 16.2%

The 2018 decrease to 16.2% from 2017 represents a -0.7% decrease YoY.

2019 - 18.3%

The 2019 increase to 18.3% from 2018 represents a 2.1% increase YoY.

2021 - 17.5%

The 2021 decrease to 17.5% from 2019 represents a -0.8% decrease YoY.

2022 - 15.4%

The 2022 decrease to 15.4% from 2021 represents a -2.1% decrease YoY.

2023 - 13%

The 2023 decrease to 13% from 2022 represents a -2.4% decrease YoY.