2008-04-01 to 2008-07-01 (94 threads) 2008-01-01 to 2008-04-01 (145 threads) 2007-10-01 to 2008-01-01 (78 threads) 2007-07-01 to 2007-10-01 (82 threads) 2007-04-01 to 2007-07-01 (44 threads) 2007-01-01 to 2007-04-01 (69 threads) 2006-10-01 to 2007-01-01 (48 threads) 2006-07-01 to 2006-10-01 (59 threads) 2006-04-01 to 2006-07-01 (65 threads) 2006-01-01 to 2006-04-01 (66 threads) 2005-10-01 to 2006-01-01 (48 threads) 2005-07-01 to 2005-10-01 (69 threads) 2005-04-01 to 2005-07-01 (40 threads) 2005-01-01 to 2005-04-01 (66 threads) 2004-10-01 to 2005-01-01 (53 threads) 2004-07-01 to 2004-10-01 (39 threads) 2004-04-01 to 2004-07-01 (47 threads) 2004-01-01 to 2004-04-01 (74 threads) 2003-10-01 to 2004-01-01 (65 threads) 2003-07-01 to 2003-10-01 (53 threads) 2003-04-01 to 2003-07-01 (57 threads) 2003-01-01 to 2003-04-01 (65 threads) 2002-10-01 to 2003-01-01 (60 threads) 2002-07-01 to 2002-10-01 (69 threads) 2002-04-01 to 2002-07-01 (66 threads) 2002-01-01 to 2002-04-01 (69 threads) 2001-10-01 to 2002-01-01 (43 threads) 2001-07-01 to 2001-10-01 (37 threads) 2001-04-01 to 2001-07-01 (43 threads)