Year: 2012
                              Quarter ended on 31 March 2012

                    Year: 2011
                              Quarter ended on 31st December 2011
                              Quarter ended on 30th September 2011
                              Quarter ended on 30 June 2011  
                              Quarter ended on 31 March 2011

                    Year: 2010  
                              Quarter ended on 31 December 2010
                              Quarter ended on 30 September 2010
                              Quarter ended on 30 June 2010
                              Quarter ended on 31 March 2010

                    Year: 2009                 
                             Quarter ended on 31 December 2009
                             Quarter ended on 30 September 2009
                             Quarter ended on 30 June 2009
                             Quarter ended on 31 March 2009

                    Year: 2008
                             Quarter ended on 31 December 2008
                             Quarter ended on 30 September 2008
                             Quarter ended on 30 June 2008
                             Quarter ended on 31 March 2008