Coal, Australian thermal coal, 1200- btu/pound, less than 1% sulfur, 14% ash, FOB Newcastle/Port Kembla, US$ per metric tonne (JAN-1980 - OCT-2007 ) |
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| Year | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
| 1980 | 39.70 | 40.26 | 40.83 | 41.41 | 41.99 | 42.58 | 43.19 | 43.80 | 44.42 | 45.05 | 45.68 | 46.33 |
| 1981 | 46.98 | 47.65 | 48.32 | 49.01 | 49.70 | 50.40 | 51.12 | 51.84 | 52.57 | 53.32 | 54.07 | 54.83 |
| 1982 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 55.61 | 45.50 |
| 1983 | 43.00 | 43.00 | 43.00 | 43.00 | 43.00 | 43.00 | 34.75 | 34.75 | 34.75 | 34.75 | 32.00 | 29.25 |
| 1984 | 29.25 | 29.25 | 29.25 | 29.25 | 29.25 | 31.75 | 31.75 | 31.75 | 31.75 | 31.75 | 32.75 | 33.75 |
| 1985 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 | 33.75 |
| 1986 | 33.75 | 33.75 | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | 29.25 |
| 1987 | 29.25 | 29.25 | 29.25 | 24.75 | 24.75 | 24.75 | 27.00 | 27.00 | 27.00 | 27.00 | 29.00 | 31.00 |
| 1988 | 31.00 | 31.00 | 33.00 | 33.00 | 33.00 | 36.00 | 36.00 | 36.00 | 37.00 | 37.00 | 37.50 | 38.00 |
| 1989 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 | 38.00 |
| 1990 | 38.00 | 38.00 | 38.00 | 38.00 | 40.50 | 40.50 | 40.50 | 40.50 | 40.50 | 40.50 | 40.50 | 40.50 |
| 1991 | 40.50 | 40.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 |
| 1992 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 39.50 | 37.25 | 35.00 | 35.00 |
| 1993 | 35.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 | 31.00 |
| 1994 | 31.00 | 31.00 | 29.50 | 29.50 | 31.40 | 33.60 | 33.10 | 33.10 | 33.10 | 33.10 | 33.10 | 36.10 |
| 1995 | 37.10 | 37.60 | 38.35 | 37.10 | 38.77 | 40.77 | 41.05 | 40.88 | 40.93 | 40.97 | 39.59 | 39.35 |
| 1996 | 39.37 | 39.28 | 39.01 | 39.33 | 38.20 | 38.20 | 38.40 | 38.35 | 38.10 | 37.60 | 35.70 | 35.35 |
| 1997 | 35.23 | 34.60 | 34.50 | 35.40 | 35.73 | 34.50 | 35.00 | 36.93 | 37.15 | 37.15 | 33.60 | 31.40 |
| 1998 | 31.40 | 33.44 | 31.88 | 31.18 | 30.28 | 30.00 | 30.00 | 26.20 | 27.09 | 27.10 | 26.10 | 26.10 |
| 1999 | 26.10 | 26.10 | 26.10 | 26.10 | 26.10 | 26.10 | 26.10 | 26.10 | 26.10 | 25.60 | 25.10 | 25.10 |
| 2000 | 25.10 | 25.10 | 25.10 | 25.10 | 25.60 | 25.60 | 25.60 | 25.60 | 27.15 | 27.15 | 27.15 | 30.75 |
| 2001 | 32.10 | 32.10 | 32.60 | 33.50 | 33.80 | 33.90 | 34.00 | 33.80 | 32.80 | 32.40 | 29.40 | 27.35 |
| 2002 | 29.10 | 29.85 | 29.55 | 28.84 | 28.63 | 26.65 | 24.90 | 24.00 | 24.45 | 26.25 | 26.25 | 26.25 |
| 2003 | 26.68 | 26.95 | 26.14 | 25.13 | 24.96 | 25.82 | 26.09 | 27.13 | 28.61 | 29.46 | 32.05 | 36.43 |
| 2004 | 40.45 | 44.73 | 52.43 | 57.05 | 60.47 | 63.80 | 65.76 | 63.48 | 59.33 | 60.67 | 56.60 | 55.98 |
| 2005 | 56.83 | 53.46 | 54.56 | 54.91 | 54.98 | 54.64 | 54.54 | 52.63 | 48.48 | 45.49 | 40.78 | 40.96 |
| 2006 | 46.27 | 51.11 | 53.30 | 56.65 | 56.36 | 56.12 | 56.52 | 54.58 | 50.46 | 47.20 | 49.29 | 53.30 |
| 2007 | 54.95 | 56.68 | 59.34 | 60.13 | 60.00 | 66.00 | 72.12 | 74.30 | 73.33 | 80.15 | ||