Article 4(2)
| Obligation period | Percentage of total supplies |
|---|---|
| 1st April 2006 to 31st March 2007 | 6.7 |
| 1st April 2007 to 31st March 2008 | 7.9 |
| 1st April 2008 to 31st March 2009 | 9.1 |
| 1st April 2009 to 31st March 2010 | 9.7 |
| 1st April 2010 to 31st March 2011 | 10.4 |
| 1st April 2011 to 31st March 2012 | 11.4 |
| 1st April 2012 to 31st March 2013 | 12.4 |
| 1st April 2013 to 31st March 2014 | 13.4 |
| 1st April 2014 to 31st March 2015 | 14.4 |
| 1st April 2015 to 31st March 2016 | 15.4 |
| Each subsequent period of twelve months ending with the period of twelve months ending on 31st March 2027 | 15.4 |