1987 01 99.99 -99.99  27.30 
1987 02 99.99 -99.99  26.50 
1987 03 99.99 -99.99  28.10 
1987 04 99.99 -99.99  28.20 
1987 05 99.99 -99.99  27.70 
1987 07 99.99 -99.99  27.20 
1987 08 99.99 -99.99  27.80 
1987 09 99.99 -99.99  28.00 
1987 10 99.99 -99.99  27.70 
1987 11 99.99 -99.99  28.00 
1987 12 99.99 -99.99  27.80 
1988 03 99.99 -99.99  27.70 
1988 04 99.99 -99.99  27.60 
1988 05 99.99 -99.99  28.10 
1988 06 99.99 -99.99  27.70 
1988 07 99.99 -99.99  27.90 
1988 08 99.99 -99.99  28.10 
1988 10 99.99 -99.99  27.40 
1988 11 99.99 -99.99  27.30 
1989 01 99.99 -99.99  26.90 
1989 02 99.99 -99.99  26.80 
1989 04 99.99 -99.99  27.40 
1989 05 99.99 -99.99  27.30 
1989 07 99.99 -99.99  27.60 
1989 08 99.99 -99.99  27.50 
1989 09 99.99 -99.99  27.20 
1989 10 99.99 -99.99  26.90 
1989 11 99.99 -99.99  27.20 
1989 12 99.99 -99.99  27.10 
1990 01 99.99 -99.99  27.20 
1990 02 99.99 -99.99  25.70 
1990 03 99.99 -99.99  26.20 
1990 04 99.99 -99.99  27.30 
1990 07 99.99 -99.99  27.30 
1990 09 99.99 -99.99  27.60 
1990 10 99.99 -99.99  27.20 
1990 11 99.99 -99.99  27.40 
1990 12 99.99 -99.99  27.30 
1991 01 99.99 -99.99  27.20 
1991 02 99.99 -99.99  27.20 
1991 04 99.99 -99.99  27.80 
1991 05 99.99 -99.99  27.70 
1991 06 99.99 -99.99  27.80 
1991 08 99.99 -99.99  27.80 
1991 09 99.99 -99.99  27.50 
1991 10 99.99 -99.99  27.20 
1991 11 99.99 -99.99  27.30 
1991 12 99.99 -99.99  27.30 
1992 01 99.99 -99.99  27.20 
1992 03 99.99 -99.99  27.60 
1992 04 99.99 -99.99  27.90 
1992 05 99.99 -99.99  27.80 
1992 06 99.99 -99.99  28.10 
1992 09 99.99 -99.99  27.40 
1992 10 99.99 -99.99  27.10 
1992 11 99.99 -99.99  27.10 
1992 12 99.99 -99.99  27.10 
1993 01 99.99 -99.99  27.10 
1993 05 99.99 -99.99  27.80 
1993 06 99.99 -99.99  27.80 
1993 07 99.99 -99.99  27.60 
1993 09 99.99 -99.99  30.50 
1993 10 99.99 -99.99  26.20 
1993 11 99.99 -99.99  26.90 
1993 12 99.99 -99.99  27.30 
1994 01 99.99 -99.99  26.70 
1994 02 99.99 -99.99  26.70 
1994 03 99.99 -99.99  25.70 
1994 04 99.99 -99.99  27.10 
1994 05 99.99 -99.99  25.90 
1994 06 99.99 -99.99  27.00 
1994 07 99.99 -99.99  27.40 
1994 08 99.99 -99.99  26.90 
1994 09 99.99 -99.99  27.20 
1994 10 99.99 -99.99  26.80 
1994 11 99.99 -99.99  26.80 
1994 12 99.99 -99.99  27.00 
1995 01 99.99 -99.99  27.30 
1995 02 99.99 -99.99  27.00 
1995 03 99.99 -99.99  27.20 
1995 04 99.99 -99.99  27.50 
1995 05 99.99 -99.99  27.20 
1995 06 99.99 -99.99  27.10 
1995 07 99.99 -99.99  26.90 
1995 08 99.99 -99.99  27.20 
1995 09 99.99 -99.99  27.30 
1995 10 99.99 -99.99  27.10 
1995 11 99.99 -99.99  25.20 
1995 12 99.99 -99.99  26.50 
1996 01 99.99 -99.99  27.00 
1996 02 28.40  23.10  25.75 
1996 03 28.10  23.90  26.00 
1996 04 28.10  23.40  25.75 
1996 05 28.40 -99.99 -99.99 
1996 06 29.40  24.60  27.00 
1996 07 28.30  25.00  26.65 
1996 08 29.00  23.80  26.40 
1996 09 28.80  23.00  25.90 
1996 12 28.50  24.70  26.60 
1997 01 27.90  25.40  26.65 
1997 02 99.99  24.70 -99.99 
1997 03 27.80  26.50  27.15 
1997 04 29.30  24.40  26.84 
1997 06 29.40  25.20  27.30 
1997 07 29.60  25.30  27.45 
1997 08 30.00  26.00  28.00 
1997 09 29.00  26.00  27.50 
1997 10 29.40  23.80  26.59 
1997 11 28.70  24.90  26.80 
1997 12 28.60  26.70  27.65 
1998 01 28.30  26.10  27.20 
1998 03 29.00  26.00  27.50 
1998 04 29.20  25.40  27.30 
1998 05 30.10  26.20  28.15 
1998 06 29.70  25.90  27.80 
1998 07 28.60  25.40  27.00 
1998 08 29.40  23.90  26.65 
1998 09 29.10  24.50  26.80 
1998 10 29.30  26.30  27.80 
1998 11 28.50  24.70  26.60 
1999 03 28.10  24.70  26.40 
1999 04 28.20  25.50  26.85 
1999 05 28.60  26.10  27.35 
1999 06 28.80  26.00  27.40 
1999 07 28.70  25.80  27.25 
1999 08 29.30  26.20  27.75 
1999 10 27.90  23.90  25.90 
1999 11 27.60  24.10  25.85 
1999 12 27.80  24.30  26.05 
2000 01 27.60  23.40  25.50 
2000 02 27.30  24.10  25.70 
2000 03 27.60  24.90  26.25 
2000 04 28.30  24.70  26.50 
2000 05 28.30  25.00  26.65 
2000 07 28.60  25.00  26.80 
2000 08 28.90  25.20  27.05 
2000 09 28.50  24.00  26.25 
2000 10 28.40  23.80  26.09 
2000 11 28.30  24.60  26.45 
2000 12 28.00  24.00  26.00 
2001 01 27.30  25.30  26.30 
2001 02 27.20  25.80  26.50 
2001 03 27.60  23.30  25.45 
2001 04 28.30  25.90  27.09 
2001 05 28.30  25.40  26.84 
2001 06 29.10  25.30  27.20 
2001 07 28.90  25.40  27.15 
2001 08 29.10  25.40  27.25 
2001 09 28.40  23.80  26.09 
2001 10 28.30  25.30  26.80 
2001 11 27.80  25.50  26.65 
2001 12 28.30  24.60  26.45 
2002 01 99.99 -99.99  27.20 
2002 02 99.99 -99.99  27.10 
2002 03 99.99 -99.99  27.50 
2002 04 99.99 -99.99  27.00 
2002 05 99.99 -99.99  27.90 
2002 06 99.99 -99.99  27.40 
2002 07 99.99 -99.99  27.20 
2002 08 99.99 -99.99  27.50 
2002 09 99.99 -99.99  27.30 
2002 10 99.99 -99.99  27.10 
2002 11 99.99 -99.99  27.30 
2002 12 99.99 -99.99  27.40 
2003 01 99.99 -99.99  27.20 
2003 02 99.99 -99.99  27.60 
2003 03 99.99 -99.99  27.80 
2003 04 99.99 -99.99  27.00 
2003 05 99.99 -99.99  27.20 
2003 06 99.99 -99.99  27.00 
2003 07 99.99 -99.99  27.00 
2003 09 99.99 -99.99  27.20 
2003 10 99.99 -99.99  27.00 
2003 11 99.99 -99.99  27.30 
2004 01 99.99 -99.99  26.90 
2004 02 99.99 -99.99  27.60 
2004 03 99.99 -99.99  27.70 
2004 05 99.99 -99.99  27.80 
2004 08 99.99 -99.99  27.60 
2004 09 99.99 -99.99  27.00 
2004 11 99.99 -99.99  27.30 
2004 12 99.99 -99.99  27.20 
2005 01 99.99 -99.99  27.40 
2005 02 99.99 -99.99  27.20 
2005 03 99.99 -99.99  27.60 
2005 04 99.99 -99.99  28.10 
2005 05 99.99 -99.99  28.00 
2005 07 99.99 -99.99  28.10 
2005 08 99.99 -99.99  27.80 
2005 09 99.99 -99.99  27.80 
2005 10 99.99 -99.99  27.00 
2005 11 99.99 -99.99  27.20 
2005 12 99.99 -99.99  27.10 
2006 01 99.99 -99.99  27.40 
2006 02 99.99 -99.99  27.20 
2006 03 99.99 -99.99  27.60 
2006 04 99.99 -99.99  27.30 
2006 05 99.99 -99.99  27.50 
2006 06 99.99 -99.99  27.80 
2006 07 99.99 -99.99  27.80 
2006 08 99.99 -99.99  28.40 
2006 09 99.99 -99.99  27.70 
2006 10 99.99 -99.99  27.60 
2006 11 99.99 -99.99  27.10 
2006 12 99.99 -99.99  27.70 
2007 01 99.99 -99.99  28.00 
2007 02 99.99 -99.99  27.70 
2007 03 99.99 -99.99  27.50 
2007 04 99.99 -99.99  27.60 
2007 05 99.99 -99.99  27.20 
2007 06 99.99 -99.99  27.50 
2007 07 99.99 -99.99  27.60 
2007 08 99.99 -99.99  28.00 
2007 09 99.99 -99.99  27.30 
2007 10 99.99 -99.99  26.90 
2007 11 99.99 -99.99  26.80 
2007 12 99.99 -99.99  28.80 
2008 01 99.99 -99.99  27.60 
2008 02 99.99 -99.99  27.00 
2008 03 99.99 -99.99  27.10 
2008 04 99.99 -99.99  27.30 
2008 05 99.99 -99.99  26.80 
2008 06 99.99 -99.99  27.20 
2008 07 99.99 -99.99  27.30 
2008 08 99.99 -99.99  27.20 
2008 09 99.99 -99.99  27.50 
2008 10 99.99 -99.99  27.40 
2008 11 99.99 -99.99  26.90 
2008 12 99.99 -99.99  27.10 
2009 01 99.99 -99.99  26.80 
2009 02 99.99 -99.99  27.20 
2009 03 99.99 -99.99  27.10 
2009 04 99.99 -99.99  27.60 
2009 05 99.99 -99.99  27.70 
2009 07 99.99 -99.99  27.90 
2009 09 99.99 -99.99  28.30 
2009 10 99.99 -99.99  27.50 
2009 11 99.99 -99.99  27.30 
2010 02 99.99 -99.99  28.20 
2010 06 99.99 -99.99  28.10 
2010 07 99.99 -99.99  27.00 
2010 08 99.99 -99.99  27.70 
2010 09 99.99 -99.99  27.70 
2010 10 99.99 -99.99  27.40 
2010 11 99.99 -99.99  26.40 
2010 12 99.99 -99.99  26.10 
2011 02 99.99 -99.99  27.50 
2011 03 99.99 -99.99  27.10 
2011 04 99.99 -99.99  27.40 
2011 05 99.99 -99.99  27.70 
2011 06 99.99 -99.99  27.50 
2011 07 99.99 -99.99  27.60 
2011 08 99.99 -99.99  27.80 
2011 09 99.99 -99.99  27.20 
2011 10 99.99 -99.99  26.40 
2011 11 99.99 -99.99  26.50 
2011 12 99.99 -99.99  28.70 
