Filing	Description	Date Filed	Size	View
SC 13G	statement of beneficial ownership	May 1, 2009	38.4 KB
SC 13G	statement of beneficial ownership	May 5, 2009	38.3 KB
SC 13G	statement of beneficial ownership	Jan 26, 2012	28.1 KB
SC 13G	statement of beneficial ownership	Feb 15, 2006	22.0 KB
SC 13G	statement of beneficial ownership	Feb 14, 2011	27.0 KB
SC 13G	statement of beneficial ownership	Feb 9, 1999	27.4 KB
SC 13G	statement of beneficial ownership	Feb 6, 1998	27.9 KB
SC 13G	statement of beneficial ownership	Jun 20, 2008	77.8 KB
SC 13G	statement of beneficial ownership	Feb 15, 2000	29.7 KB
SC 13G	statement of beneficial ownership	Feb 10, 2011	27.3 KB
SC 13G	statement of beneficial ownership	Feb 11, 2000	25.9 KB
SC 13G	statement of beneficial ownership	Feb 13, 2004	10.6 KB
SC 13G	statement of beneficial ownership	Jan 25, 2002	42.4 KB
SC 13G	statement of beneficial ownership	Feb 27, 2008	356.3 KB
SC 13G	statement of beneficial ownership	Feb 4, 2000	79.4 KB
SC 13G/A	amended statement of beneficial ownership	Jan 6, 2012	74.9 KB
SC 13G/A	amended statement of beneficial ownership	Feb 9, 1999	29.9 KB
SC 13G/A	amended statement of beneficial ownership	Feb 4, 2008	38.1 KB
SC 13G/A	amended statement of beneficial ownership	Jan 22, 2009	38.0 KB
SC 13G/A	amended statement of beneficial ownership	Feb 1, 2008	65.8 KB
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