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The following table shows previous lists and the number of systems installed when the list was published. Site Efficiency in the table is SUM(Rmax)/SUM(Rpeak), expressed as a percentage.

List Systems Highest Ranking Sum Rmax
(GFlops)		 Sum Rpeak
(GFlops)		 Site Efficiency
(%)
11/2008 1 344 15811.00 18841.60 83.92
06/2008 1 155 15811.00 18841.60 83.92
11/2007 1 70 15811.00 18841.60 83.92
06/2007 1 51 15811.00 18841.60 83.92
11/2005 1 473 1709.10 2074.00 82.41
06/2005 1 272 1709.10 2074.00 82.41
11/2004 2 164 2582.10 3098.00 83.35
06/2004 2 122 2582.10 3098.00 83.35
11/2003 2 60 2582.10 3098.00 83.35
06/2003 2 28 2582.10 3098.00 83.35
11/2002 3 26 2779.40 3357.20 82.79
06/2002 2 13 2582.10 3098.00 83.35
11/2001 2 7 2582.10 3098.00 83.35
06/2001 2 5 2582.10 3098.00 83.35
11/2000 2 13 1105.40 1331.20 83.04
06/2000 2 9 1105.40 1331.20 83.04
11/1999 4 5 1185.90 1431.04 82.87
06/1999 5 4 1212.35 1463.04 82.87
11/1998 5 22 367.75 471.04 78.07
06/1998 5 14 367.75 471.04 78.07
11/1997 7 6 364.17 471.04 77.31
06/1997 3 4 270.17 371.20 72.78
11/1996 2 3 248.80 339.20 73.35
06/1996 2 1 248.80 339.20 73.35
11/1995 1 29 28.40 32.00 88.75
06/1995 1 23 28.40 32.00 88.75
11/1994 1 11 27.50 32.00 85.94
06/1994 1 11 27.50 32.00 85.94
11/1993 1 42 7.02 32.00 21.93
06/1993 1 36 5.71 32.00 17.86