1992 07 99.99 -99.99  20.20 
1992 12 99.99 -99.99  19.60 
1993 09 99.99 -99.99  21.10 
1993 12 99.99 -99.99  19.50 
1994 01 99.99 -99.99  18.90 
1994 06 99.99 -99.99  21.10 
1994 07 99.99 -99.99  20.50 
1994 08 99.99 -99.99  21.20 
1994 09 99.99 -99.99  21.50 
1994 10 99.99 -99.99  21.30 
1994 11 99.99 -99.99  21.00 
1994 12 99.99 -99.99  24.00 
1995 01 99.99 -99.99  20.10 
1995 02 99.99 -99.99  20.29 
1995 03 99.99 -99.99  20.00 
1995 04 99.99 -99.99  20.80 
1995 08 99.99 -99.99  21.60 
1995 09 99.99 -99.99  21.60 
1995 10 99.99 -99.99  21.20 
1995 11 99.99 -99.99  20.80 
1995 12 99.99 -99.99  20.29 
1996 01 99.99 -99.99  19.60 
1996 02 99.99 -99.99  19.70 
1996 03 99.99 -99.99  19.79 
1996 04 99.99 -99.99  20.70 
1996 05 99.99 -99.99  21.10 
1996 06 99.99 -99.99  20.60 
1996 07 99.99 -99.99  20.50 
1996 08 99.99 -99.99  20.60 
1996 09 99.99 -99.99  21.40 
1996 10 99.99 -99.99  21.00 
1996 12 99.99 -99.99  20.00 
1997 01 99.99 -99.99  20.00 
1997 02 99.99 -99.99  20.50 
1997 03 99.99 -99.99  20.00 
1997 04 99.99 -99.99  19.79 
1997 05 99.99 -99.99  21.00 
1997 06 99.99 -99.99  20.90 
1997 07 99.99 -99.99  20.70 
1997 08 99.99 -99.99  21.10 
1997 09 99.99 -99.99  21.30 
1997 10 99.99 -99.99  21.50 
1997 11 99.99 -99.99  20.80 
1997 12 99.99 -99.99  20.29 
1998 01 99.99 -99.99  20.50 
1998 02 99.99 -99.99  20.70 
1998 03 99.99 -99.99  20.80 
1998 04 99.99 -99.99  21.00 
1998 05 99.99 -99.99  21.20 
1998 06 99.99 -99.99  21.40 
1998 07 99.99 -99.99  21.00 
1998 08 99.99 -99.99  21.50 
1998 09 99.99 -99.99  21.50 
1998 10 99.99 -99.99  21.20 
1998 11 99.99 -99.99  20.00 
1998 12 99.99 -99.99  20.40 
1999 01 99.99 -99.99  19.50 
1999 02 99.99 -99.99  19.29 
1999 03 99.99 -99.99  20.20 
1999 04 99.99 -99.99  20.80 
1999 05 99.99 -99.99  21.20 
1999 06 99.99 -99.99  20.40 
1999 07 99.99 -99.99  20.20 
1999 08 99.99 -99.99  20.90 
1999 09 99.99 -99.99  20.60 
1999 10 99.99 -99.99  20.50 
1999 11 99.99 -99.99  21.20 
1999 12 99.99 -99.99  19.79 
2000 01 99.99 -99.99  19.10 
2000 02 99.99 -99.99  18.79 
2000 03 99.99 -99.99  19.10 
2000 04 99.99 -99.99  20.50 
2000 05 99.99 -99.99  21.00 
2000 06 99.99 -99.99  20.40 
2000 07 99.99 -99.99  20.29 
2000 08 99.99 -99.99  20.80 
2000 09 99.99 -99.99  20.70 
2000 10 99.99 -99.99  21.00 
2000 11 99.99 -99.99  20.29 
2000 12 99.99 -99.99  19.79 
2001 01 99.99 -99.99  19.10 
2001 04 99.99 -99.99  19.50 
2001 05 99.99 -99.99  21.20 
2001 06 99.99 -99.99  20.29 
2001 07 99.99 -99.99  20.10 
2001 08 99.99 -99.99  20.50 
2001 09 99.99 -99.99  20.10 
2001 10 99.99 -99.99  20.40 
2001 11 99.99 -99.99  20.10 
2001 12 99.99 -99.99  20.60 
2002 01 99.99 -99.99  19.90 
2002 02 99.99 -99.99  19.10 
2002 03 99.99 -99.99  19.90 
2002 04 99.99 -99.99  20.40 
2002 05 99.99 -99.99  20.80 
2002 06 99.99 -99.99  20.90 
2002 07 99.99 -99.99  20.50 
2002 08 99.99 -99.99  21.00 
2002 09 99.99 -99.99  21.50 
2002 10 99.99 -99.99  21.10 
2002 11 99.99 -99.99  20.60 
2002 12 99.99 -99.99  19.40 
2003 01 99.99 -99.99  19.60 
2003 02 99.99 -99.99  19.79 
2003 03 99.99 -99.99  20.10 
2003 05 99.99 -99.99  20.90 
2003 08 99.99 -99.99  21.20 
2003 10 99.99 -99.99  21.40 
2003 12 99.99 -99.99  20.20 
2004 01 99.99 -99.99  19.50 
2004 02 99.99 -99.99  19.00 
2004 08 99.99 -99.99  19.29 
2005 04 99.99 -99.99  21.40 
