2011 - 17.1%

The 2011 17.1% is the baseline measurement.

2012 - 16.3%

The 2012 decrease to 16.3% from 2011 represents a -0.8% decrease YoY.

2013 - 18.1%

The 2013 increase to 18.1% from 2012 represents a 1.8% increase YoY.

2014 - 14.1%

The 2014 decrease to 14.1% from 2013 represents a -4.0% decrease YoY.

2015 - 16.8%

The 2015 increase to 16.8% from 2014 represents a 2.7% increase YoY.

2016 - 16.8%

The 2016 decrease to 16.8% from 2015 represents a 0.0% decrease YoY.

2017 - 15.3%

The 2017 decrease to 15.3% from 2016 represents a -1.5% decrease YoY.

2018 - 11.9%

The 2018 decrease to 11.9% from 2017 represents a -3.4% decrease YoY.

2019 - 14.1%

The 2019 increase to 14.1% from 2018 represents a 2.2% increase YoY.

2021 - 13%

The 2021 decrease to 13% from 2019 represents a -1.1% decrease YoY.

2022 - 12.5%

The 2022 decrease to 12.5% from 2021 represents a -0.5% decrease YoY.

2023 - 10.2%

The 2023 decrease to 10.2% from 2022 represents a -2.3% decrease YoY.