3.5The ERI measure is calculated as a weighted three-year rolling average. The formula used to calculate the ERI measure for 2011 is:

∑ [(2007 ERI for TEO x 0.15) + (2008 ERI for TEO x 0.35) + (2009 ERI for TEO x 0.50)] | X total amount of funding available for the ERI component of the PBRF |

∑ [(Total 2007 ERI for all TEOs x 0.15) + (Total 2008 ERI for all TEOs x 0.35) + (Total 2009 ERI for all TEOs x 0.50)] |

3.6The formula used to calculate the ERI measure for 2012 is:

∑ [(2008 ERI for TEO x 0.15) + (2009 ERI for TEO x 0.35) + (2010 ERI for TEO x 0.5)] | X total amount of funding available for the ERI component of the PBRF |

∑ [(Total 2008 ERI for all TEOs x 0.15) + (Total 2009 ERI for all TEOs x 0.35) + (Total 2010 ERI for all TEOs x 0.5)] |