The most up to date appraisal of cash costs is produced in the SECUTOR report from 11 days ago .....

This is prepared form reliable sources according to the sources on page 20 of the report.

TABLE 4: PAGE 4 - CASH COSTS

2014/2015 - $499.55

2013/2014 -$547.89

2012/2013 - $707.66