1997 01 30.20  24.10  27.15 
1997 03 30.60  24.40  27.50 
1997 04 30.70  23.90  27.30 
1997 05 30.90  24.10  27.50 
1997 06 30.50  23.70  27.10 
1997 07 29.80  23.80  26.80 
1997 08 30.10  23.60  26.85 
1997 10 30.10  23.70  26.90 
1997 11 30.70  24.20  27.45 
1997 12 31.00  24.20  27.60 
1998 01 30.30  24.20  27.25 
1998 02 30.00  24.20  27.10 
1998 03 30.20  25.30  27.75 
1998 04 29.70  24.60  27.15 
1998 05 31.10  24.80  27.95 
1998 06 31.20  24.20  27.70 
1998 07 30.80  23.70  27.25 
1998 08 30.50  24.20  27.35 
1998 09 31.10  24.20  27.65 
1998 10 31.00  24.10  27.55 
1998 11 30.90  24.00  27.45 
1998 12 30.90  24.30  27.59 
1999 01 31.50  24.00  27.75 
1999 02 30.60 -99.99 -99.99 
1999 03 30.90  24.20  27.55 
1999 04 30.60  24.00  27.30 
1999 05 30.90  24.10  27.50 
1999 06 30.40  23.70  27.05 
1999 10 31.00  24.00  27.50 
1999 11 30.70  23.90  27.30 
2000 01 31.10  24.20  27.65 
2000 02 31.60  23.90  27.75 
2000 03 30.90  24.00  27.45 
2000 04 29.00  24.20  26.60 
2000 05 30.60  24.00  27.30 
2000 06 30.60  23.80  27.20 
2000 07 29.70  23.30  26.50 
2000 09 31.40  23.70  27.55 
2000 10 30.80  24.20  27.50 
2000 11 31.10  24.40  27.75 
2000 12 30.60  24.30  27.45 
2001 01 31.50  24.10  27.80 
2001 02 30.40  24.30  27.34 
2001 03 29.60  24.10  26.85 
2001 05 30.20  24.20  27.20 
2001 06 30.80  24.00  27.40 
2001 07 30.80  24.10  27.45 
2001 08 30.50  24.00  27.25 
2001 09 31.20  24.20  27.70 
2001 10 31.10  24.40  27.75 
2001 11 31.20  24.40  27.80 
2001 12 30.40  24.40  27.40 
2002 02 30.60  24.30  27.45 
2002 03 30.20  24.30  27.25 
2002 04 30.70  24.20  27.45 
2002 05 31.00  24.50  27.75 
2002 06 30.70  24.50  27.60 
2002 07 30.40  23.90  27.15 
2002 08 30.50  23.90  27.20 
2002 09 30.80  24.10  27.45 
2002 11 31.10  24.30  27.70 
2003 01 31.00  24.30  27.65 
2003 02 30.70  24.20  27.45 
2003 03 31.00  24.10  27.55 
2003 04 32.09  23.60  27.84 
2003 06 31.30  23.80  27.55 
2003 07 30.40  24.60  27.50 
2003 09 30.80  24.10  27.45 
2003 11 31.50  24.50  28.00 
2003 12 31.30  24.40  27.84 
2004 01 29.30  24.60  26.95 
2004 02 28.80  23.70  26.25 
2004 03 31.10  24.80  27.95 
2004 04 31.30  24.60  27.95 
2004 06 30.70  24.20  27.45 
2004 07 30.50  23.70  27.10 
2004 08 30.80  24.10  27.45 
2004 09 30.30  23.90  27.09 
