Data Table
| Year | Value (SE) |
|---|
| 2000 | 0.4540 (0.0777) |
| 2001 | 0.4360 (0.0240) |
| 2002 | 0.5120 (0.0086) |
| 2003 | 0.5830 (0.0048) |
| 2004 | 0.4070 (0.0096) |
| 2005 | 0.4070 (0.0267) |
| 2006 | 0.5080 (0.0296) |
| 2007 | 0.5130 (0.0172) |
| 2008 | 0.7650 (0.0704) |
| 2009 | 0.3910 (0.0255) |
| 2010 | 0.5580 (0.0477) |
| 2011 | 0.4020 (0.0486) |
| 2012 | 0.4730 (0.0287) |
| 2013 | 0.5860 (0.0482) |
| 2014 | 0.5550 (0.0434) |
| 2015 | 0.4680 (0.0663) |
| 2016 | 0.4530 (0.0326) |
| 2017 | 0.4360 (0.0270) |
| 2018 | 0.5170 (0.0452) |
| 2019 | 0.4130 (0.0293) |
| 2020 | 0.5240 (0.0381) |
| 2021 | 0.3820 (0.0525) |
| 2022 | 0.3330 (0.0536) |
| 2023 | 0.4290 (0.0240) |
| 2024 | 0.4350 (0.0564) |
