1997 04 19.90  12.60  16.25 
2002 11 19.60   7.10  13.35 
2002 12 11.60   2.00   6.80 
2003 11 16.40   5.70  11.04 
2003 12 12.90   2.80   7.85 
2004 01  8.80    .70   4.75 
2004 02 15.10   3.90   9.50 
2004 03 23.60   9.20  16.40 
2004 04 26.50  12.50  19.50 
2004 05 32.40  16.29  24.35 
2004 06 36.30  20.70  28.50 
2004 07 36.90  22.90  29.90 
2004 08 36.90  22.90  29.90 
2004 10 22.40   9.39  15.90 
2004 11 99.99 -99.99  13.40 
2004 12 99.99 -99.99   7.70 
2005 01 99.99 -99.99   3.20 
2005 02 99.99 -99.99   5.00 
2005 03 99.99 -99.99  11.70 
2005 04 99.99 -99.99  15.90 
2005 05 99.99 -99.99  18.20 
2005 06 99.99 -99.99  27.00 
2005 07 99.99 -99.99  30.20 
2005 08 99.99 -99.99  28.60 
2005 09 99.99 -99.99  26.90 
2005 10 99.99 -99.99  18.79 
2005 11 99.99 -99.99  10.60 
2005 12 99.99 -99.99   7.40 
2006 01 99.99 -99.99   3.40 
2006 02 99.99 -99.99  11.30 
2006 03 99.99 -99.99  12.30 
2006 04 99.99 -99.99  18.10 
2006 05 99.99 -99.99  27.50 
2006 06 99.99 -99.99  27.50 
2006 07 99.99 -99.99  31.30 
2006 08 99.99 -99.99  28.90 
2006 09 99.99 -99.99  25.00 
2006 10 99.99 -99.99  21.10 
2006 11 99.99 -99.99  12.20 
2006 12 99.99 -99.99   4.80 
2007 01 99.99 -99.99   5.00 
2007 02 99.99 -99.99   8.20 
2007 03 99.99 -99.99   9.50 
2007 04 99.99 -99.99  20.29 
2007 05 99.99 -99.99  22.80 
2007 06 99.99 -99.99  28.00 
2007 07 99.99 -99.99  29.70 
2007 08 99.99 -99.99  29.30 
2007 09 99.99 -99.99  25.30 
2007 10 99.99 -99.99  18.40 
2007 11 99.99 -99.99  14.80 
2007 12 99.99 -99.99   6.90 
2008 01 99.99 -99.99   1.10 
2008 02 99.99 -99.99   5.40 
2008 03 99.99 -99.99  15.20 
2008 04 99.99 -99.99  17.10 
2008 05 99.99 -99.99  23.60 
2008 06 99.99 -99.99  30.80 
2008 07 99.99 -99.99  30.00 
2008 08 99.99 -99.99  28.50 
2008 09 99.99 -99.99  24.20 
2008 10 99.99 -99.99  21.00 
2008 11 99.99 -99.99  12.00 
2008 12 99.99 -99.99   7.70 
2009 01 99.99 -99.99   5.40 
2009 02 99.99 -99.99   5.30 
2009 03 99.99 -99.99  11.50 
2009 04 99.99 -99.99  15.20 
2009 05 99.99 -99.99  23.20 
2009 06 99.99 -99.99  24.10 
2009 07 99.99 -99.99  29.60 
2009 08 99.99 -99.99  30.30 
2009 09 99.99 -99.99  25.30 
2009 10 99.99 -99.99  18.20 
2009 11 99.99 -99.99   9.89 
2009 12 99.99 -99.99   6.20 
2010 01 99.99 -99.99   7.50 
2010 02 99.99 -99.99   5.00 
2010 03 99.99 -99.99  15.50 
2010 04 99.99 -99.99  17.90 
2010 05 99.99 -99.99  21.90 
2010 06 99.99 -99.99  24.50 
2010 07 99.99 -99.99  28.30 
2010 08 99.99 -99.99  25.70 
2010 09 99.99 -99.99  21.90 
2010 10 99.99 -99.99  20.00 
2010 11 99.99 -99.99  13.80 
2010 12 99.99 -99.99   7.80 
2011 01 99.99 -99.99   5.00 
2011 02 99.99 -99.99   4.40 
2011 03 99.99 -99.99  12.60 
2011 04 99.99 -99.99  17.00 
2011 05 99.99 -99.99  26.00 
2011 06 99.99 -99.99  29.70 
2011 07 99.99 -99.99  29.60 
2011 08 99.99 -99.99  29.80 
2011 09 99.99 -99.99  24.70 
2011 10 99.99 -99.99  18.00 
2011 11 99.99 -99.99  12.90 
2011 12 99.99 -99.99   7.50 
