2011 - 8.7%

The 2011 8.7% is the baseline measurement.

2012 - 11.3%

The 2012 increase to 11.3% from 2011 represents a 2.6% increase YoY.

2013 - 9.5%

The 2013 decrease to 9.5% from 2012 represents a -1.8% decrease YoY.

2014 - 10.4%

The 2014 increase to 10.4% from 2013 represents a 0.9% increase YoY.

2015 - 8.3%

The 2015 decrease to 8.3% from 2014 represents a -2.1% decrease YoY.

2016 - 8.5%

The 2016 increase to 8.5% from 2015 represents a 0.2% increase YoY.

2017 - 5.1%

The 2017 decrease to 5.1% from 2016 represents a -3.4% decrease YoY.

2018 - 6.1%

The 2018 increase to 6.1% from 2017 represents a 1.0% increase YoY.

2019 - 6%

The 2019 decrease to 6% from 2018 represents a -0.1% decrease YoY.

2021 - 11%

The 2021 increase to 11% from 2019 represents a 5.0% increase YoY.

2022 - 8.6%

The 2022 decrease to 8.6% from 2021 represents a -2.4% decrease YoY.

2023 - 4.4%

The 2023 decrease to 4.4% from 2022 represents a -4.2% decrease YoY.