Data Table
| Year | Value (SE) |
|---|
| 2000 | 0.6790 (0.0464) |
| 2001 | 0.7470 (0.0250) |
| 2002 | 0.6970 (0.0357) |
| 2003 | 0.6320 (0.0216) |
| 2004 | 0.4580 (0.0233) |
| 2005 | 0.6480 (0.0376) |
| 2006 | 0.6810 (0.0487) |
| 2007 | 0.6890 (0.0624) |
| 2008 | 0.7060 (0.0803) |
| 2009 | 0.6190 (0.0565) |
| 2010 | 0.6200 (0.0623) |
| 2011 | 0.7880 (0.1191) |
| 2012 | 0.6070 (0.0201) |
| 2013 | 0.6600 (0.0227) |
| 2014 | 0.6240 (0.0148) |
| 2015 | 0.7720 (0.0481) |
| 2016 | 0.8490 (0.0398) |
| 2017 | 0.4540 (0.0235) |
| 2018 | 0.4340 (0.0264) |
| 2019 | 0.4030 (0.0320) |
| 2021 | 0.3770 (0.0277) |
| 2022 | 0.2930 (0.0176) |
| 2023 | 0.4910 (0.0689) |
| 2024 | 0.3000 (0.0461) |
