| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
|---|---|---|---|---|---|---|---|
| $US/$CAN | |||||||
| New Purchasing Power Parities (PPP) - gross domestic product (GDP) extrapolation | 0.846 | 0.85 | 0.861 | 0.874 | 0.879 | 0.875 | 0.861 |
| New PPP - gross domestic income (GDI) extrapolation | 0.846 | 0.851 | 0.86 | 0.874 | 0.883 | 0.89 | 0.898 |
| Previous PPP - GDP extrapolation | 0.846 | 0.836 | 0.833 | 0.832 | 0.839 | .. | .. |