1998 04 -11.50 -24.40 -17.95 
1998 08  14.30   6.90  10.60 
1998 09   6.80   2.00   4.40 
1998 12 -24.90 -30.70 -27.80 
1999 01 -26.70 -33.70 -30.20 
1999 02 -21.90 -30.00 -25.95 
1999 03 -15.00 -23.90 -19.45 
1999 04  -8.60 -20.20 -14.40 
1999 05  -1.70  -9.39  -5.55 
1999 06  11.50   1.30   6.40 
1999 07  14.90   5.80  10.35 
1999 08  12.00   4.50   8.25 
1999 09   6.20   0.00   3.10 
1999 10  -6.00 -11.10  -8.55 
1999 11 -12.70 -20.80 -16.75 
1999 12 -22.20 -29.60 -25.90 
2000 01 -25.10 -33.30 -29.20 
2000 02 -24.40 -33.09 -28.75 
2000 03 -20.20 -29.80 -25.00 
2000 04 -13.90 -22.40 -18.15 
2000 05  -1.80  -8.80  -5.30 
2000 06  11.90  -1.90   5.00 
2000 07  23.40   7.50  15.45 
2000 08  17.20   5.30  11.25 
2000 09   4.69  -1.70   1.49 
2000 10  -5.30 -13.80  -9.55 
2000 11 -15.90 -23.10 -19.50 
2000 12 -27.10 -33.09 -30.09 
2001 01 -24.10 -33.30 -28.70 
2001 02 -25.90 -34.00 -29.95 
2001 03 -18.40 -26.90 -22.65 
2001 04 -12.90 -22.90 -17.90 
2001 05  -1.20  -7.60  -4.40 
2001 06   9.50   0.20   4.85 
2001 07  18.20   7.80  13.00 
2001 08  12.50   4.10   8.30 
2001 09   9.10   1.30   5.20 
2001 10  -5.90 -10.90  -8.39 
2001 11 -16.70 -22.80 -19.75 
2001 12 -18.90 -26.40 -22.65 
2002 01 -26.70 -33.40 -30.05 
2002 02 -29.90 -36.40 -33.15 
2002 03 -24.60 -32.90 -28.75 
2002 04 -16.79 -26.30 -21.55 
2002 05  -5.20 -11.90  -8.54 
2002 06   9.60   0.20   4.90 
2002 07  16.29   6.10  11.20 
2002 08  13.10   5.30   9.20 
2002 09   5.10   -.70   2.20 
2002 10  -5.80 -12.50  -9.14 
2002 11 -15.00 -24.10 -19.54 
2002 12 -18.70 -26.10 -22.40 
2003 01 -23.50 -30.90 -27.20 
2003 02 -31.40 -38.20 -34.80 
2003 03 -23.80 -32.20 -28.00 
2003 04 -12.40 -21.50 -16.95 
2003 05  -2.20 -10.50  -6.35 
2003 06   8.50   0.00   4.25 
2003 07  19.00   6.80  12.90 
2003 08  14.90   4.40   9.64 
2003 09   6.90   -.30   3.30 
2003 10  -2.80  -9.10  -5.95 
2003 11 -14.00 -22.50 -18.25 
2003 12 -22.40 -31.40 -26.90 
2004 02 -28.90 -37.90 -33.40 
2004 03 -26.96 -36.09 -31.52 
2004 05  -8.37 -15.84 -12.10 
2004 06   8.74   0.17   4.45 
2004 07  17.26   5.27  11.26 
2004 08  11.62   3.26   7.44 
2004 09   4.88  -1.23   1.82 
2004 10  -7.35 -14.03 -10.69 
2004 11 -17.36 -26.17 -21.76 
2004 12 -29.30 -35.21 -32.25 
2005 01 -28.76 -35.50 -32.13 
2005 03 -23.23 -30.86 -27.04 
2005 04  -9.57 -18.17 -13.87 
2005 05  -5.96 -12.37  -9.16 
2005 06   9.43   -.10   4.66 
2005 07  14.67   4.79   9.72 
2005 08  14.72   5.41  10.06 
2005 09   3.42  -1.97   0.72 
2005 10  -4.28 -10.28  -7.28 
2005 11 -14.60 -21.19 -17.89 
2006 02 -22.27 -29.20 -25.73 
2006 03 -16.96 -24.65 -20.81 
2006 04 -11.01 -20.45 -15.73 
2006 05   0.67  -6.89  -3.11 
2006 06  13.99   1.98   7.98 
2006 07  16.04   5.76  10.90 
2006 08  16.54   6.11  11.32 
2006 09   7.43   -.44   3.49 
2006 10 -99.99  -8.13 -99.99 
2007 09   2.53  -2.80   -.13 
2007 10  -3.35  -9.33  -6.34 
2007 11 -18.83 -26.70 -22.76 
2007 12 -23.45 -30.45 -26.95 
2008 01 -27.00 -33.28 -30.14 
2008 02 -31.72 -38.48 -35.09 
2008 04 -13.41 -22.13 -17.77 
2008 05  -2.83  -9.52  -6.17 
2008 06   9.96  -0.04   4.96 
2008 07  19.24   6.92  13.08 
2008 08  13.91   5.19   9.55 
2008 09   3.89  -1.47   1.21 
2008 10  -1.79  -8.09  -4.94 
2008 11 -14.60 -22.04 -18.32 
2008 12 -26.41 -32.90 -29.65 
2009 01 -24.80 -31.84 -28.32 
2009 09   8.37   0.56   4.46 
2009 10  -7.19 -12.88 -10.03 
2009 11 -13.28 -20.23 -16.75 
2009 12 -21.31 -28.15 -24.73 
2010 01 -22.99 -30.49 -26.74 
2010 02 -21.77 -27.79 -24.78 
2010 03 -16.45 -23.44 -19.94 
2010 04  -4.39 -12.30  -8.34 
2010 05  -4.48 -13.16  -8.82 
2010 06  11.41   1.09   6.25 
2010 08  14.73   5.09   9.91 
2010 09   6.15   0.09   3.12 
2010 11 -12.12 -21.21 -16.66 
2010 12 -18.92 -25.89 -22.40 
2011 09   6.84   -.16   3.34 
2011 10  -2.89  -7.97  -5.43 
2011 11 -13.98 -20.43 -17.20 
2011 12 -22.52 -29.92 -26.22 
2012 01 -27.39 -35.73 -31.56 
2012 10  -4.91 -10.76  -7.83 
2012 11 -17.06 -23.98 -20.52 
2013 09   6.33   0.30   3.31 
2013 10  -2.42  -7.46  -4.94 
2013 11 -19.41 -26.29 -22.85 
2013 12 -26.55 -32.99 -29.77 
2014 01 -27.74 -35.09 -31.41 
2014 02 -26.76 -32.90 -29.83 
2014 05   0.07  -7.97  -3.94 
