| $0.6024 | 2.39% | 16 May 2019 to 15 August 2019 | 30 August 2019 |
| $0.6632 | 2.72% | 16 February 2019 to 15 May 2019 | 30 May 2019 |
| $0.6780 | 2.69% | 16 November 2018 to 15 February 2019 | 4 March 2019 |
| $0.6805 | 2.70% | 16 August 2018 to 15 November 2018 | 30 November 2018 |
| $0.6679 | 2.65% | 16 May 2018 to 15 August 2018 | 30 August 2018 |
| $0.6120 | 2.51% | 16 February 2018 to 15 May 2018 | 30 May 2018 |
| $0.6201 | 2.46% | 16 November 2017 to 15 February 2018 | 2 March 2018 |
| $0.6150 | 2.44% | 16 August 2017 to 15 November 2017 | 30 November 2017 |
| $0.6276 | 2.49% | 16 May 2017 to 15 August 2017 | 30 August 2017 |
| $0.6169 | 2.53% | 16 February 2017 to 15 May 2017 | 30 May 2017 |
| $0.6327 | 2.51% | 16 November 2016 to 15 February 2017 | 2 March 2017 |
| $0.6327 | 2.51% | 16 August 2016 to 15 November 2016 | 30 November 2016 |
| $0.6906 | 2.74% | 16 May 2016 to 15 August 2016 | 30 August 2016 |
| $0.7484 | 3.04% | 16 February 2016 to 15 May 2016 | 31 May 2016 |
| $0.7486 | 2.97% | 16 November 2015 to 15 February 2016 | 1 March 2016 |
| $0.7284 | 2.89% | 16 August 2015 to 15 November 2015 | 1 December 2015 |
| $0.7284 | 2.89% | 16 May 2015 to 15 August 2015 | 1 September 2015 |
| $0.7510 | 3.08% | 16 February 2015 to 15 May 2015 | 1 June 2015 |
| $0.8898 | 3.53% | 16 November 2015 to 15 February 2015 | 3 March 2015 |
| $0.8545 | 3.39% | 16 August 2014 to 15 November 2014 | 2 December 2014 |
| $0.8696 | 3.45% | 16 May 2014 to 15 August 2014 | 1 September 2014 |
| $0.8242 | 3.38% | 16 February 2014 to 15 May 2014 | 30 May 2014 |
| $0.8393 | 3.33% | 16 November 2013 to 15 February 2014 | 4 March 2014 |
| $0.8494 | 3.37% | 16 August 2013 to 15 November 2013 | 2 December 2013 |
| $0.8973 | 3.56% | 16 May 2013 to 15 August 2013 | 30 August 2013 |
| $0.8949 | 3.67% | 16 February 2013 to 15 May 2013 | 30 May 2013 |
| $1.0158 | 4.03% | 16 November 2012 to 15 February 2013 | 4 March 2013 |
| $1.1090 | 4.40% | 16 August 2012 to 15 November 2012 | 30 November 2012 |
| $1.1393 | 4.52% | 16 May 2012 to 15 August 2012 | 30 August 2012 |
| $1.2460 | 5.11% | 16 February 2012 to 15 May 2012 | 30 May 2012 |
| $1.3611 | 5.40% | 16 November 2011 to 15 February 2012 | 1 March 2012 |
| $1.4241 | 4.90% | 16 August 2011 to 15 November 2011 | 30 November 2011 |
| $1.4418 | 4.97% | 16 May 2011 to 15 August 2011 | 30 August 2011 |
| $1.3801 | 4.91% | 16 February 2011 to 15 May 2011 | 31 May 2011 |
| $1.4619 | 5.05% | 16 November 2010 to 15 February 2011 | 2 March 2011 |
| $1.3838 | 5.49% | 16 August 2010 to 15 November 2010 | 30 November 2010 |
| $1.4115 | 5.60% | 16 May 2010 to 15 August 2010 | 31 August 2010 |
| $1.2413 | 4.98% | 16 February 2010 to 15 May 2010 | 1 June 2010 |
| $1.2143 | 4.98% | 16 November 2009 to 15 February 2010 | 2 March 2010 |
| $0.9855 | 3.91% | 16 August 2009 to 15 November 2009 | 1 December 2009 |
| $0.9855 | 3.91% | 16 May 2009 to 15 August 2009 | 1 September 2009 |
| $0.9339 | 3.83% | 16 February 2009 to 15 May 2009 | 1 June 2009 |
| $1.3485 | 5.39% | 16 November 2008 to 15 February 2009 | 3 March 2009 |
| $2.0265 | 8.04% | 16 August 2008 to 15 November 2008 | 2 December 2008 |
| $2.1551 | 8.55% | 16 May 2008 to 15 August 2008 | 1 September 2008 |
| $2.0848 | 8.55% | 16 February 2008 to 15 May 2008 | 30 May 2008 |
| $1.9887 | 7.80% | 16 November 2007 to 15 February 2008 | 3 March 2008 |
| $1.9408 | 7.70% | 16 August 2007 to 15 November 2007 | 3 November 2007 |
| $1.7997 | 7.14% | 16 May 2007 to 15 August 2007 | 30 August 2007 |
| $1.7385 | 7.13% | 16 February 2007 to 15 May 2007 | 30 May 2007 |
| $1.7946 | 7.12% | 16 November 2006 to 15 February 2007 | 2 March 2007 |
| $1.6081 | 6.38% | 16 August 2006 to 15 November 2006 | 30 November 2006 |
| $1.6736 | 6.64% | 16 May 2006 to 15 August 2006 | 30 August 2006 |
| $1.5532 | 6.37% | 16 February 2006 to 15 May 2006 | 30 May 2006 |
| $1.6106 | 6.39% | 16 November 2005 to 15 February 2006 | 2 March 2006 |
| $1.6081 | 6.38% | 16 August 2005 to 15 November 2005 | 30 November 2005 |
| $1.5830 | 6.43% | 17 May 2005 to 15 August 2005 | 30 August 2005 |
| $1.5383 | 6.42% | 16 February 2005 to 16 MAY 2005 | 30 May 2005 |
| $1.5602 | 6.17% | 16 November 2004 to 15 February 2005 | 1 March 2005 |
| $1.6081 | 6.38% | August 2004 to November 2004 | 30 November 2004 |
| $1.5582 | 6.25% | May 2004 to August 2004 | 31 August 2004 |
| $1.5632 | 6.27% | February 2004 to May 2004 | 1 June 2004 |
| $1.5308 | 6.14% | November 2003 to February 2004 | 2 March 2004 |
| $1.4396 | 5.59% | August 2003 to November 2003 | 2 December 2003 |
| $1.3939 | 5.53% | May 2003 to August 2003 | 1 September 2003 |
| $1.3062 | 5.48% | February 2003 to May 2003 | 30 May 2003 |
| $1.4422 | 5.60% | November 2002 to February 2003 | 4 March 2003 |
| $1.4367 | 5.70% | August 2002 to November 2002 | 2 December 2002 |
| $1.4165 | 5.62% | May 2002 to August 2002 | 30 August 2002 |
| $1.2436 | 5.10% | February 2002 to May 2002 | 30 May 2002 |
| $1.2830 | 5.09% | November 2001 to February 2002 | 4 March 2002 |
| $0.0576 | 5.76% | August 2001 to November 2001 | 30 November 2001 |
| $0.0570 | 5.70% | May 2001 to August 2001 | 30 August 2001 |
| $0.0643 | 6.43% | February 2001 to May 2001 | 30 May 2001 |
| $0.0708 | 7.08% | November 2000 to February 2001 | 2 March 2001 |
