Data Table
| Year | Value (SE) |
|---|
| 2000 | 0.6930 (0.1465) |
| 2001 | 0.2970 (0.0299) |
| 2002 | 0.4660 (0.0712) |
| 2003 | 0.4400 (0.0224) |
| 2004 | 0.3320 (0.0605) |
| 2005 | 0.4080 (0.0311) |
| 2006 | 0.4050 (0.0266) |
| 2007 | 0.4820 (0.0102) |
| 2008 | 0.4600 (0.0320) |
| 2009 | 0.3630 (0.0281) |
| 2010 | 0.4480 (0.0321) |
| 2011 | 0.5370 (0.0471) |
| 2012 | 0.4720 (0.0168) |
| 2013 | 0.6410 (0.0415) |
| 2014 | 0.6220 (0.0373) |
| 2015 | 0.4490 (0.0289) |
| 2016 | 0.4090 (0.0257) |
| 2017 | 0.5060 (0.0253) |
| 2018 | 0.4430 (0.0312) |
| 2019 | 0.4000 (0.0208) |
| 2020 | 0.4850 (0.0270) |
| 2021 | 0.5830 (0.0671) |
| 2022 | 0.5010 (0.0669) |
| 2023 | 0.4210 (0.0301) |
| 2024 | 0.4610 (0.0546) |
