Data Table
| Year | Value (SE) |
|---|
| 2000 | 0.5447 (0.0385) |
| 2001 | 0.3133 (0.0102) |
| 2002 | 0.4956 (0.0437) |
| 2003 | 0.4827 (0.0281) |
| 2004 | 0.3814 (0.0435) |
| 2005 | 0.4787 (0.0126) |
| 2006 | 0.5027 (0.0237) |
| 2007 | 0.4742 (0.0173) |
| 2008 | 0.4157 (0.0201) |
| 2009 | 0.4122 (0.0178) |
| 2010 | 0.4620 (0.0404) |
| 2011 | 0.4758 (0.0226) |
| 2012 | 0.5575 (0.0172) |
| 2013 | 0.6296 (0.0370) |
| 2014 | 0.5873 (0.0284) |
| 2015 | 0.5443 (0.0673) |
| 2016 | 0.5185 (0.0235) |
| 2017 | 0.5293 (0.0341) |
| 2018 | 0.5174 (0.0394) |
| 2019 | 0.5284 (0.0432) |
| 2020 | 0.5259 (0.0688) |
| 2021 | 0.5954 (0.2570) |
| 2022 | 0.4511 (0.0877) |
| 2023 | 0.4248 (0.0424) |
| 2024 | 0.5639 (0.2881) |
