| Year | Q4 | Q3 | Q2 | Q1 |
|---|---|---|---|---|
| 2016 | March | -- | September | June |
| 2015 | March | December | September | June |
| 2014 | March | December | September | June |
| 2013 | -- | December | September | June |
| 2012 | -- | December | September | June |
| 2011 | -- | December | September | June |
| 2010 | -- | December | September | June |
| 2009 | March | December | September | June |
| 2008 | -- | December | September | June |
| 2007 | -- | December | September | -- |
| 2006 | -- | December | September | June |