1991 12 99.99 -99.99   5.50 
1992 02 99.99 -99.99   7.10 
1992 08 99.99 -99.99  26.40 
1992 09 99.99 -99.99  23.30 
1992 10 99.99 -99.99  15.30 
1992 11 99.99 -99.99   8.80 
1993 03 99.99 -99.99   9.70 
1993 04 99.99 -99.99  12.80 
1993 05 99.99 -99.99  18.00 
1993 07 99.99 -99.99  28.70 
1993 08 99.99 -99.99  27.50 
1993 09 99.99 -99.99  20.60 
1993 10 99.99 -99.99  16.00 
1993 11 99.99 -99.99  16.00 
1993 12 99.99 -99.99   6.10 
1994 01 99.99 -99.99   5.60 
1994 02 99.99 -99.99   7.50 
1994 03 99.99 -99.99  11.00 
1994 04 99.99 -99.99  12.00 
1994 05 99.99 -99.99  20.90 
1994 06 99.99 -99.99  25.70 
1994 07 99.99 -99.99  29.20 
1994 08 99.99 -99.99  28.80 
1994 09 99.99 -99.99  21.60 
1994 10 99.99 -99.99  16.10 
1994 12 99.99 -99.99   6.50 
1995 01 99.99 -99.99   4.90 
1995 03 99.99 -99.99   9.89 
1995 04 99.99 -99.99  11.90 
1995 06 99.99 -99.99  23.20 
1995 08 99.99 -99.99  27.10 
1995 09 99.99 -99.99  20.20 
1995 11 99.99 -99.99  11.90 
1996 01 99.99 -99.99   7.90 
1996 09 99.99 -99.99  20.40 
1996 10 99.99 -99.99  15.50 
1996 11 99.99 -99.99  10.80 
1997 01 99.99 -99.99   7.80 
1997 02 99.99 -99.99   9.50 
1997 03 99.99 -99.99  11.20 
1997 04 99.99 -99.99  13.90 
1997 05 99.99 -99.99  19.20 
1997 06 99.99 -99.99  24.60 
1997 07 99.99 -99.99  28.20 
1997 08 99.99 -99.99  25.80 
1997 10 99.99 -99.99  17.20 
1997 11 99.99 -99.99  11.60 
1997 12 99.99 -99.99   7.50 
1998 01 99.99 -99.99   6.80 
1998 02 99.99 -99.99   8.89 
1998 03 99.99 -99.99  11.90 
1998 04 99.99 -99.99  14.80 
1998 05 99.99 -99.99  16.90 
1998 07 99.99 -99.99  29.70 
1998 08 99.99 -99.99  27.80 
1998 09 99.99 -99.99  24.50 
1998 10 99.99 -99.99  14.80 
1998 11 99.99 -99.99  11.10 
1998 12 99.99 -99.99   4.69 
1999 02 99.99 -99.99   5.00 
1999 04 99.99 -99.99  16.10 
1999 05 99.99 -99.99  22.30 
1999 06 99.99 -99.99  26.00 
1999 07 99.99 -99.99  28.90 
1999 08 99.99 -99.99  30.20 
1999 09 99.99 -99.99  23.70 
1999 10 99.99 -99.99  19.60 
1999 11 99.99 -99.99   9.10 
1999 12 99.99 -99.99   5.00 
2000 01 99.99 -99.99   3.60 
2000 02 99.99 -99.99   7.80 
2000 06 99.99 -99.99  25.40 
2001 09 99.99 -99.99  23.60 
2001 12 99.99 -99.99   7.50 
2002 01 99.99 -99.99   6.30 
2002 02 99.99 -99.99   8.89 
2002 03 99.99 -99.99  12.20 
2002 05 99.99 -99.99  19.40 
2002 06 99.99 -99.99  26.60 
2002 07 99.99 -99.99  28.10 
2002 08 99.99 -99.99  26.50 
2002 09 99.99 -99.99  22.40 
2002 10 99.99 -99.99  17.79 
2002 11 99.99 -99.99  11.00 
2002 12 99.99 -99.99   8.60 
2003 01 99.99 -99.99   5.30 
2003 05 99.99 -99.99  19.70 
2003 06 99.99 -99.99  27.20 
2003 07 99.99 -99.99  30.20 
2003 10 99.99 -99.99  18.20 
2003 11 99.99 -99.99  10.20 
2003 12 99.99 -99.99   6.40 
2004 01 99.99 -99.99   6.90 
2004 02 99.99 -99.99   6.90 
2004 03 99.99 -99.99  11.80 
2004 05 99.99 -99.99  15.10 
2004 06 99.99 -99.99  25.10 
2004 07 99.99 -99.99  28.60 
2004 08 99.99 -99.99  28.50 
2004 09 99.99 -99.99  23.10 
2004 10 99.99 -99.99  19.50 
2004 11 99.99 -99.99   9.00 
2004 12 99.99 -99.99   5.40 
2005 01 99.99 -99.99   3.10 
2005 02 99.99 -99.99   4.40 
2005 03 99.99 -99.99   6.20 
2005 04 99.99 -99.99  16.10 
2005 05 99.99 -99.99  23.40 
2005 06 99.99 -99.99  25.70 
2005 07 99.99 -99.99  30.60 
2005 08 99.99 -99.99  28.10 
2005 09 99.99 -99.99  21.80 
2005 10 99.99 -99.99  18.00 
2005 11 99.99 -99.99  10.30 
2005 12 99.99 -99.99   5.50 
2006 01 99.99 -99.99   3.80 
2006 02 99.99 -99.99   6.40 
2006 03 99.99 -99.99  12.50 
2006 04 99.99 -99.99  17.60 
2006 05 99.99 -99.99  21.50 
2006 06 99.99 -99.99  25.80 
2006 07 99.99 -99.99  29.20 
2006 08 99.99 -99.99  27.90 
2006 09 99.99 -99.99  21.60 
2006 10 99.99 -99.99  19.50 
2006 11 99.99 -99.99  12.00 
2006 12 99.99 -99.99   6.10 
2007 01 99.99 -99.99   6.80 
2007 02 99.99 -99.99   9.80 
2007 03 99.99 -99.99   9.20 
2007 04 99.99 -99.99  13.50 
2007 05 99.99 -99.99  19.20 
2007 06 99.99 -99.99  25.30 
2007 07 99.99 -99.99  29.30 
2007 08 99.99 -99.99  28.00 
2007 09 99.99 -99.99  24.10 
2007 10 99.99 -99.99  16.50 
2007 11 99.99 -99.99  10.20 
2007 12 99.99 -99.99   5.60 
2008 01 99.99 -99.99   6.80 
2008 02 99.99 -99.99   9.30 
2008 03 99.99 -99.99  11.20 
2008 04 99.99 -99.99  16.20 
2008 05 99.99 -99.99  18.70 
2008 06 99.99 -99.99  24.60 
2008 07 99.99 -99.99  29.90 
2008 08 99.99 -99.99  29.20 
2008 09 99.99 -99.99  18.50 
2008 10 99.99 -99.99  14.90 
2008 11 99.99 -99.99   7.90 
2008 12 99.99 -99.99   4.69 
2009 01 99.99 -99.99   5.30 
2009 02 99.99 -99.99   7.20 
2009 03 99.99 -99.99  11.90 
2009 04 99.99 -99.99  12.10 
2009 05 99.99 -99.99  20.40 
2009 06 99.99 -99.99  25.90 
2009 07 99.99 -99.99  30.00 
2009 08 99.99 -99.99  28.80 
2009 09 99.99 -99.99  20.00 
2009 10 99.99 -99.99  17.79 
2009 11 99.99 -99.99  12.10 
2009 12 99.99 -99.99   9.89 
2010 01 99.99 -99.99   8.20 
2010 02 99.99 -99.99  11.00 
2010 03 99.99 -99.99  13.30 
2010 04 99.99 -99.99  17.10 
2010 05 99.99 -99.99  18.20 
2010 06 99.99 -99.99  24.10 
2010 07 99.99 -99.99  30.30 
2010 08 99.99 -99.99  28.40 
2010 09 99.99 -99.99  23.20 
2010 10 99.99 -99.99  16.90 
2010 11 99.99 -99.99  11.10 
2010 12 99.99 -99.99   9.39 
2011 01 99.99 -99.99   7.90 
2011 02 99.99 -99.99   6.40 
2011 03 99.99 -99.99  10.60 
2011 04 99.99 -99.99  17.40 
2011 05 99.99 -99.99  19.50 
2011 06 99.99 -99.99  23.70 
2011 07 99.99 -99.99  28.30 
2011 08 99.99 -99.99  29.20 
2011 09 99.99 -99.99  25.10 
2011 10 99.99 -99.99  16.29 
2011 11 99.99 -99.99  10.40 
2011 12 99.99 -99.99   5.50 
2014 03 16.79   3.40  10.09 
2014 04 25.70   9.30  17.50 
2014 05 29.30  13.70  21.50 
