| Date - Field | Ghana - Area - comparative |
2008 January Area - comparative | slightly smaller than Oregon |
2007 January Area - comparative | slightly smaller than Oregon |
2006 January Area - comparative | slightly smaller than Oregon |
2005 January Area - comparative | slightly smaller than Oregon |
2004 January Area - comparative | slightly smaller than Oregon |
2003 January Area - comparative | slightly smaller than Oregon |
2002 January Area - comparative | slightly smaller than Oregon |
2001 January Area - comparative | slightly smaller than Oregon |
2000 January Area - comparative | slightly smaller than Oregon |