1988 01 99.99 -99.99  27.60 
1988 02 99.99 -99.99  27.10 
1988 03 99.99 -99.99  26.50 
1988 04 99.99 -99.99  25.40 
1988 05 99.99 -99.99  23.70 
1988 06 99.99 -99.99  20.70 
1988 07 99.99 -99.99  19.60 
1988 08 99.99 -99.99  21.00 
1988 09 99.99 -99.99  22.30 
1988 10 99.99 -99.99  23.00 
1988 11 99.99 -99.99  23.80 
1988 12 99.99 -99.99  25.70 
1989 01 99.99 -99.99  27.10 
1989 02 99.99 -99.99  28.30 
1989 03 99.99 -99.99  26.90 
1989 04 99.99 -99.99  26.10 
1989 05 99.99 -99.99  22.40 
1989 06 99.99 -99.99  21.30 
1989 07 99.99 -99.99  20.20 
1989 08 99.99 -99.99  21.70 
1990 03 99.99 -99.99  28.80 
1990 04 99.99 -99.99  27.70 
1990 06 99.99 -99.99  22.30 
1990 07 99.99 -99.99  21.30 
1993 05 99.99 -99.99  23.20 
1993 06 99.99 -99.99  21.40 
1993 07 99.99 -99.99  22.10 
1993 08 99.99 -99.99  22.10 
1993 09 99.99 -99.99  23.20 
1993 10 99.99 -99.99  24.60 
1994 04 99.99 -99.99  24.70 
1994 05 99.99 -99.99  24.60 
1994 06 99.99 -99.99  21.90 
1994 07 99.99 -99.99  21.30 
1994 08 99.99 -99.99  21.60 
1994 09 99.99 -99.99  22.60 
1994 10 99.99 -99.99  24.60 
1994 11 99.99 -99.99  26.20 
1994 12 99.99 -99.99  26.50 
1995 01 99.99 -99.99  27.40 
1995 02 99.99 -99.99  27.80 
1995 03 99.99 -99.99  27.10 
1995 05 99.99 -99.99  23.50 
1995 06 99.99 -99.99  22.10 
1995 07 99.99 -99.99  23.00 
1995 08 99.99 -99.99  29.80 
1995 09 99.99 -99.99  23.60 
1995 10 99.99 -99.99  23.80 
1995 11 99.99 -99.99  24.70 
1995 12 99.99 -99.99  25.70 
1996 02 99.99 -99.99  28.70 
1996 03 99.99 -99.99  27.80 
1996 04 99.99 -99.99  25.40 
1996 05 99.99 -99.99  22.80 
1996 06 99.99 -99.99  21.70 
1996 07 99.99 -99.99  20.40 
1996 08 99.99 -99.99  21.10 
1996 09 99.99 -99.99  21.80 
1996 10 99.99 -99.99  24.00 
1996 12 99.99 -99.99  26.50 
1997 01 99.99 -99.99  26.30 
1997 02 99.99 -99.99  27.20 
1997 03 99.99 -99.99  25.20 
1997 06 99.99 -99.99  22.00 
1997 07 99.99 -99.99  22.00 
1997 08 99.99 -99.99  22.30 
1997 09 99.99 -99.99  23.60 
1997 10 99.99 -99.99  24.60 
1997 11 99.99 -99.99  26.30 
1998 01 99.99 -99.99  27.20 
1998 02 99.99 -99.99  28.10 
1998 03 99.99 -99.99  17.40 
1998 04 99.99 -99.99  25.90 
1998 06 99.99 -99.99  20.10 
1998 08 99.99 -99.99  23.30 
1998 09 99.99 -99.99  23.80 
1998 10 99.99 -99.99  23.50 
1998 11 99.99 -99.99  23.40 
1998 12 99.99 -99.99  26.70 
1999 01 99.99 -99.99  27.50 
1999 03 99.99 -99.99  26.60 
1999 04 99.99 -99.99  24.90 
1999 05 99.99 -99.99  22.50 
1999 06 99.99 -99.99  21.70 
1999 07 99.99 -99.99  21.40 
1999 08 99.99 -99.99  20.70 
1999 09 99.99 -99.99  22.70 
1999 10 99.99 -99.99  22.00 
1999 11 99.99 -99.99  22.80 
1999 12 99.99 -99.99  25.60 
2000 01 99.99 -99.99  26.50 
2000 02 99.99 -99.99  26.30 
2000 03 99.99 -99.99  27.20 
2000 04 99.99 -99.99  25.10 
2000 05 99.99 -99.99  22.70 
2000 06 99.99 -99.99  22.00 
2000 07 99.99 -99.99  20.90 
2000 08 99.99 -99.99  21.70 
2000 09 99.99 -99.99  22.10 
2000 10 99.99 -99.99  25.00 
2000 11 99.99 -99.99  26.60 
2000 12 99.99 -99.99  26.30 
2001 01 99.99 -99.99  27.10 
2001 02 99.99 -99.99  28.00 
2001 03 99.99 -99.99  27.50 
2001 04 99.99 -99.99  26.40 
2001 05 99.99 -99.99  23.60 
2001 06 99.99 -99.99  23.00 
2001 07 99.99 -99.99  22.70 
2001 08 99.99 -99.99  22.70 
2001 09 99.99 -99.99  22.50 
2001 10 99.99 -99.99  23.30 
2001 11 99.99 -99.99  24.90 
2001 12 99.99 -99.99  26.00 
2002 01 99.99 -99.99  26.50 
2002 02 99.99 -99.99  26.10 
2002 03 99.99 -99.99  27.70 
2002 04 99.99 -99.99  26.40 
2002 05 99.99 -99.99  25.20 
2002 06 99.99 -99.99  23.60 
2002 07 99.99 -99.99  21.90 
2002 08 99.99 -99.99  24.00 
2002 09 99.99 -99.99  21.90 
2002 10 99.99 -99.99  25.10 
2002 11 99.99 -99.99  26.00 
2002 12 99.99 -99.99  27.10 
2003 01 99.99 -99.99  27.90 
2003 02 99.99 -99.99  28.30 
2003 03 99.99 -99.99  27.60 
2003 04 99.99 -99.99  25.90 
2003 05 99.99 -99.99  23.00 
2003 06 99.99 -99.99  23.00 
2003 07 99.99 -99.99  21.60 
2003 08 99.99 -99.99  21.30 
2003 09 99.99 -99.99  22.30 
2003 10 99.99 -99.99  23.70 
2003 11 99.99 -99.99  25.10 
2003 12 99.99 -99.99  26.30 
2004 01 99.99 -99.99  25.70 
2004 02 99.99 -99.99  26.20 
2004 03 99.99 -99.99  25.90 
2004 04 99.99 -99.99  25.30 
2004 05 99.99 -99.99  23.20 
2004 06 99.99 -99.99  21.60 
2004 08 99.99 -99.99  21.60 
2004 09 99.99 -99.99  23.60 
2004 10 99.99 -99.99  23.90 
2004 11 99.99 -99.99  24.80 
2004 12 99.99 -99.99  25.70 
2005 01 99.99 -99.99  26.70 
2005 02 99.99 -99.99  26.50 
2005 03 99.99 -99.99  26.80 
2005 04 99.99 -99.99  26.10 
2005 05 99.99 -99.99  23.90 
2005 07 99.99 -99.99  21.00 
2005 08 99.99 -99.99  23.00 
2005 09 99.99 -99.99  22.70 
2005 10 99.99 -99.99  25.60 
2005 11 99.99 -99.99  24.10 
2005 12 99.99 -99.99  25.30 
2006 01 99.99 -99.99  27.40 
2006 02 99.99 -99.99  28.20 
2006 03 99.99 -99.99  27.20 
2006 04 99.99 -99.99  25.10 
2006 05 99.99 -99.99  22.30 
2006 06 99.99 -99.99  21.30 
2006 07 99.99 -99.99  21.40 
2006 08 99.99 -99.99  22.50 
2006 09 99.99 -99.99  22.70 
2006 10 99.99 -99.99  23.80 
2006 11 99.99 -99.99  24.70 
2006 12 99.99 -99.99  26.10 
2007 01 99.99 -99.99  25.90 
2007 02 99.99 -99.99  26.90 
2007 03 99.99 -99.99  27.70 
2007 04 99.99 -99.99  25.90 
2007 05 99.99 -99.99  22.70 
2007 06 99.99 -99.99  22.50 
2007 07 99.99 -99.99  22.00 
2007 08 99.99 -99.99  22.40 
2007 09 99.99 -99.99  23.10 
2007 10 99.99 -99.99  24.70 
2007 11 99.99 -99.99  24.90 
2007 12 99.99 -99.99  26.50 
2008 01 99.99 -99.99  25.50 
2008 02 99.99 -99.99  26.30 
2008 05 99.99 -99.99  23.20 
2008 06 99.99 -99.99  21.90 
2008 07 99.99 -99.99  21.00 
2008 08 99.99 -99.99  22.90 
2008 09 99.99 -99.99  22.10 
2008 10 99.99 -99.99  23.90 
2008 11 99.99 -99.99  24.20 
2008 12 99.99 -99.99  24.80 
2009 01 99.99 -99.99  26.50 
2009 02 99.99 -99.99  27.70 
2009 03 99.99 -99.99  27.30 
2009 04 99.99 -99.99  25.10 
2009 05 99.99 -99.99  24.10 
2009 06 99.99 -99.99  21.30 
2009 07 99.99 -99.99  22.00 
2009 08 99.99 -99.99  22.50 
2009 09 99.99 -99.99  24.10 
2009 10 99.99 -99.99  24.70 
2009 11 99.99 -99.99  27.10 
2009 12 99.99 -99.99  26.80 
2010 01 99.99 -99.99  28.40 
2010 02 99.99 -99.99  28.60 
2010 03 99.99 -99.99  27.40 
2010 04 99.99 -99.99  25.40 
2010 05 99.99 -99.99  23.50 
2010 07 99.99 -99.99  22.00 
2010 08 99.99 -99.99  21.50 
2010 09 99.99 -99.99  23.10 
2010 10 99.99 -99.99  23.90 
2010 11 99.99 -99.99  24.60 
2010 12 99.99 -99.99  27.10 
2011 01 99.99 -99.99  27.30 
2011 02 99.99 -99.99  28.00 
2011 03 99.99 -99.99  26.00 
2011 04 99.99 -99.99  25.90 
2011 05 99.99 -99.99  22.50 
2011 06 99.99 -99.99  21.50 
2011 07 99.99 -99.99  21.30 
2011 08 99.99 -99.99  22.60 
2011 09 99.99 -99.99  22.10 
2011 10 99.99 -99.99  23.60 
2011 11 99.99 -99.99  23.50 
2011 12 99.99 -99.99  25.20 
2014 03 32.20  23.20  27.70 
2014 04 30.50  21.90  26.20 
2014 05 29.00  20.10  24.55 
