| April 1 – June 30, 2012
|
1.50%
|
| January 1 – March 31, 2012
|
1.50%
|
| October 1 – December 31, 2011
|
1.50%
|
| July 1 – September 30, 2011
|
1.50%
|
| April 1 – June 30, 2011
|
1.25%
|
| January 1 – March 31, 2011
|
1.25%
|
| October 1 – December 31, 2010
|
1.25%
|
| July 1 – September 30, 2010
|
1.25%
|
| April 1 – June 30, 2010
|
1.15%
|
| January 1 – March 31, 2010
|
1.15%
|
| October 1 – December 31, 2009
|
1.15%
|
| July 1 – September 30, 2009
|
1.15%
|
| April 1 – June 30, 2009
|
2.75%
|
| January 1 – March 31, 2009
|
2.75%
|
| October 1 – December 31, 2008
|
2.75%
|
| July 1 – September 30, 2008
|
2.75%
|
| April 1 – June 30, 2008
|
3.75%
|
| January 1 – March 31, 2008
|
3.75%
|
| October 1 – December 31, 2007
|
3.75%
|
| July 1 – September 30, 2007
|
3.50%
|
| April 1 – June 30, 2007
|
3.25%
|
| January 1 – March 31, 2007
|
3.25%
|
| October 1 – December 31, 2006
|
3.25%
|
| July 1 – September 30, 2006
|
3.25%
|
| April 1 – June 30, 2006
|
2%
|
| January 1 – March 31, 2006
|
2%
|
| October 1 – December 31, 2005
|
1.55%
|
| July 1 – September 30, 2005
|
1.55%
|
| April 1 – June 30, 2005
|
1.65%
|
| January 1 – March 31, 2005
|
1.50%
|
| October 1 – December 31, 2004
|
1.25%
|
| July 1 – September 30, 2004
|
1.25%
|
| April 1 – June 30, 2004
|
2%
|
| January 1 – March 31, 2004
|
2%
|
| October 1 – December 31, 2003
|
2%
|
| July 1 – September 30, 2003
|
2%
|
| April 1 – June 30, 2003
|
2%
|
| January 1 – March 31, 2003
|
2%
|
| October 1 – December 31, 2002
|
1.35%
|
| July 1 – September 30, 2002
|
1.35%
|
| April 1 – June 30, 2002
|
3.35%
|