• February:  mt0302.zip (37 kb)
• January:   mt0301.zip (44 kb)

• December:  mt0212.zip (28 kb)
• November:  mt0211.zip (41 kb)
• October:   mt0210.zip (41 kb)
• September: mt0209.zip (41 kb)
• August:    mt0208.zip (45 kb)
• July:      mt0207.zip (48 kb)
• June:      mt0206.zip (43 kb)
• May:       mt0205.zip (51 kb)
• April:     mt0204.zip (54 kb)
• March:     mt0203.zip (44 kb)
• February:  mt0202.zip (40 kb)
• January:   mt0201.zip (49 kb)

• December:  mt0112.zip (31 kb)
• November:  mt0111.zip (45 kb)
• October:   mt0110.zip (42 kb)
• September: mt0109.zip (42 kb)
• August:    mt0108.zip (43 kb)
• July:      mt0107.zip (43 kb)
• June:      mt0106.zip (43 kb)
• May:       mt0105.zip (45 kb)
• April:     mt0104.zip (41 kb)
• March:     mt0103.zip (41 kb)
• February:  mt0102.zip (41 kb)
• January:   mt0101.zip (44 kb)

• December:  mt0012.zip (33 kb)
• November:  mt0011.zip (44 kb)
• October:   mt0010.zip (49 kb)
• September: mt0009.zip (49 kb)
• August:    mt0008.zip (50 kb)
• July:      mt0007.zip (48 kb)
• June:      mt0006.zip (42 kb)
• May:       mt0005.zip (42 kb) 
• April:     mt0004.zip (33 kb) 
• March:     mt0003.zip (41 kb)
• February:  mt0002.zip (41 kb)
• January:   mt0001.zip (38 kb)

December:  mt9912.zip (46 kb)

November:  mt9911.zip (46 kb)

October:   mt9910.zip (40 kb)

September: mt9909.zip (39 kb)

August:    mt9908.zip (39 kb)

July:      mt9907.zip (56 kb)

June:      mt9906.zip (45 kb)

May:       mt9905.zip (39 kb)

April:     mt9904.zip (35 kb)

March:     mt9903.zip (31 kb)

February:  mt9902.zip (29 kb)

January:   mt9901.zip (25 kb)

• Historical data from January to December 1998:  mt98.zip   (387 kb)