| Date - Field | Niger - Location |
2009 January Location | Western Africa, southeast of Algeria |
2008 January Location | Western Africa, southeast of Algeria |
2007 January Location | Western Africa, southeast of Algeria |
2006 January Location | Western Africa, southeast of Algeria |
2005 January Location | Western Africa, southeast of Algeria |
2004 January Location | Western Africa, southeast of Algeria |
2003 January Location | Western Africa, southeast of Algeria |
2002 January Location | Western Africa, southeast of Algeria |
2001 January Location | Western Africa, southeast of Algeria |
2000 January Location | Western Africa, southeast of Algeria |