2011 - 12.2%

The 2011 12.2% is the baseline measurement.

2012 - 12.1%

The 2012 decrease to 12.1% from 2011 represents a -0.1% decrease YoY.

2013 - 12.4%

The 2013 increase to 12.4% from 2012 represents a 0.3% increase YoY.

2014 - 11.3%

The 2014 decrease to 11.3% from 2013 represents a -1.1% decrease YoY.

2015 - 11.1%

The 2015 decrease to 11.1% from 2014 represents a -0.2% decrease YoY.

2016 - 9.2%

The 2016 decrease to 9.2% from 2015 represents a -1.9% decrease YoY.

2017 - 9.2%

The 2017 decrease to 9.2% from 2016 represents a 0.0% decrease YoY.

2018 - 10.1%

The 2018 increase to 10.1% from 2017 represents a 0.9% increase YoY.

2019 - 6.8%

The 2019 decrease to 6.8% from 2018 represents a -3.3% decrease YoY.

2021 - 9%

The 2021 increase to 9% from 2019 represents a 2.2% increase YoY.

2022 - 8.8%

The 2022 decrease to 8.8% from 2021 represents a -0.2% decrease YoY.

2023 - 8.9%

The 2023 increase to 8.9% from 2022 represents a 0.1% increase YoY.