| 1993 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.46 | 1.42 | 1.47 | 1.53 | 1.59 | 1.56 | 1.49 | 1.50 | 1.55 | 1.56 | 1.87 | 1.94 |
| 1992 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.36 | 1.26 | 1.22 | 1.24 | 1.26 | 1.28 | 1.21 | 1.28 | 1.28 | 1.45 | 1.45 | 1.44 |
| 1991 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.64 | 1.59 | 1.49 | 1.42 | 1.38 | 1.30 | 1.25 | 1.18 | 1.18 | 1.22 | 1.33 | 1.36 |
| 1990 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.62 | 1.64 | 1.59 | 1.53 | 1.55 | 1.50 | 1.50 | 1.48 | 1.48 | 1.52 | 1.58 | 1.64 |
| 1989 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.62 | 1.62 | 1.58 | 1.55 | 1.54 | 1.50 | 1.46 | 1.46 | 1.47 | 1.47 | 1.52 | 1.55 |
| 1988 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $/GJ | 1.56 | 1.63 | 1.60 | 1.53 | 1.48 | 1.46 | 1.53 | 1.53 | 1.53 | 1.55 | 1.59 | 1.61 |