| Day | Rate | Set date |
|---|---|---|
| 4 January | 17.7900 | .. |
| 5 January | 17.9700 | .. |
| 6 January | 17.7500 | .. |
| 7 January | 17.5800 | .. |
| 8 January | 17.4800 | .. |
| 11 January | 17.4200 | .. |
| 12 January | 17.0100 | .. |
| 13 January | 17.0600 | .. |
| 14 January | 17.2300 | .. |
| 15 January | 17.5000 | .. |
| 18 January | 17.4600 | .. |
| 19 January | 17.1900 | .. |
| 20 January | 16.9700 | .. |
| 21 January | 17.4200 | .. |
| 22 January | 17.3100 | .. |
| 25 January | 18.0700 | .. |
| 26 January | 18.0300 | .. |
| 27 January | 18.0300 | .. |
| 28 January | 18.6200 | .. |
| 29 January | 18.4700 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 February | 18.5700 | .. |
| 2 February | 18.2500 | .. |
| 3 February | 18.2600 | .. |
| 4 February | 18.5600 | .. |
| 5 February | 18.5600 | .. |
| 8 February | 18.3000 | .. |
| 9 February | 18.2900 | .. |
| 10 February | 18.3100 | .. |
| 11 February | 18.3900 | .. |
| 12 February | 18.2100 | .. |
| 15 February | 17.9600 | .. |
| 16 February | 18.1500 | .. |
| 17 February | 17.7300 | .. |
| 18 February | 17.9800 | .. |
| 19 February | 18.2800 | .. |
| 22 February | 18.6300 | .. |
| 23 February | 18.9500 | .. |
| 24 February | 19.0100 | .. |
| 25 February | 18.9800 | .. |
| 26 February | 18.9200 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 March | 18.9600 | .. |
| 2 March | 18.8700 | .. |
| 3 March | 18.9700 | .. |
| 4 March | 19.4800 | .. |
| 5 March | 19.3700 | .. |
| 8 March | 19.0500 | .. |
| 9 March | 19.0500 | .. |
| 10 March | 18.8800 | .. |
| 11 March | 18.5500 | .. |
| 12 March | 18.8900 | .. |
| 15 March | 18.6900 | .. |
| 16 March | 18.6000 | .. |
| 17 March | 18.7100 | .. |
| 18 March | 18.8400 | .. |
| 19 March | 18.6200 | .. |
| 22 March | 18.2700 | .. |
| 23 March | 18.4900 | .. |
| 24 March | 18.6300 | .. |
| 25 March | 18.7700 | .. |
| 26 March | 18.7500 | .. |
| 29 March | 18.7900 | .. |
| 30 March | 18.6600 | .. |
| 31 March | 18.9000 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 April | 19.0000 | .. |
| 2 April | 19.1100 | .. |
| 5 April | 19.0600 | .. |
| 6 April | 18.7800 | .. |
| 7 April | 18.8600 | .. |
| 8 April | 18.7700 | .. |
| 13 April | 18.9100 | .. |
| 14 April | 18.8600 | .. |
| 15 April | 18.8500 | .. |
| 16 April | 18.8100 | .. |
| 19 April | 18.7200 | .. |
| 20 April | 18.8000 | .. |
| 21 April | 18.8800 | .. |
| 22 April | 18.7600 | .. |
| 23 April | 18.9100 | .. |
| 26 April | 18.9000 | .. |
| 27 April | 18.7600 | .. |
| 28 April | 18.7900 | .. |
| 29 April | 19.1500 | .. |
| 30 April | 19.1500 | .. |
| Day | Rate | Set date |
|---|---|---|
| 4 May | 19.0500 | .. |
| 5 May | 19.1600 | .. |
| 6 May | 19.1600 | .. |
| 7 May | 19.1900 | .. |
| 10 May | 19.1000 | .. |
| 11 May | 19.0700 | .. |
| 12 May | 18.9700 | .. |
| 13 May | 18.7000 | .. |
| 14 May | 18.6000 | .. |
| 17 May | 18.4100 | .. |
| 18 May | 18.2800 | .. |
| 19 May | 18.2000 | .. |
| 20 May | 18.4500 | .. |
| 21 May | 18.4300 | .. |
| 24 May | 18.3300 | .. |
| 25 May | 18.4900 | .. |
| 26 May | 18.4800 | .. |
| 27 May | 18.5900 | .. |
| 28 May | 18.6000 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 June | 18.7200 | .. |
| 2 June | 18.5400 | .. |
| 3 June | 18.3100 | .. |
| 4 June | 18.3100 | .. |
| 7 June | 18.1900 | .. |
| 8 June | 18.2700 | .. |
| 9 June | 18.2600 | .. |
| 10 June | 17.9600 | .. |
| 11 June | 17.6600 | .. |
| 14 June | 17.5600 | .. |
| 15 June | 17.3300 | .. |
| 16 June | 17.6600 | .. |
| 17 June | 17.5500 | .. |
| 18 June | 17.5600 | .. |
| 21 June | 17.5000 | .. |
| 22 June | 17.4500 | .. |
| 23 June | 17.4800 | .. |
| 24 June | 17.4800 | .. |
| 25 June | 17.4500 | .. |
| 28 June | 17.5200 | .. |
| 29 June | 17.6600 | .. |
| 30 June | 17.5100 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 July | 17.1400 | .. |
| 2 July | 16.7400 | .. |
| 5 July | 16.9300 | .. |
| 6 July | 17.0600 | .. |
| 7 July | 16.9100 | .. |
| 8 July | 16.5700 | .. |
| 9 July | 16.6500 | .. |
| 12 July | 16.8900 | .. |
| 13 July | 16.9600 | .. |
| 14 July | 16.4300 | .. |
| 15 July | 16.3800 | .. |
| 16 July | 16.3100 | .. |
| 19 July | 17.0500 | .. |
| 20 July | 16.7100 | .. |
| 21 July | 16.8100 | .. |
| 22 July | 16.6500 | .. |
| 23 July | 16.6900 | .. |
| 26 July | 16.9300 | .. |
| 27 July | 17.2400 | .. |
| 28 July | 17.0900 | .. |
| 29 July | 16.8900 | .. |
| 30 July | 16.7500 | .. |
| Day | Rate | Set date |
|---|---|---|
| 2 August | 16.7900 | .. |
| 3 August | 16.6700 | .. |
| 4 August | 16.6600 | .. |
| 5 August | 16.4900 | .. |
| 6 August | 16.4000 | .. |
| 9 August | 16.6300 | .. |
| 10 August | 16.5600 | .. |
| 11 August | 16.9100 | .. |
| 12 August | 17.0200 | .. |
| 13 August | 17.0400 | .. |
| 16 August | 16.9600 | .. |
| 17 August | 17.0900 | .. |
| 18 August | 16.9600 | .. |
| 19 August | 16.9600 | .. |
| 20 August | 17.0900 | .. |
| 23 August | 17.2300 | .. |
| 24 August | 17.1200 | .. |
| 25 August | 17.0400 | .. |
| 26 August | 17.1600 | .. |
| 27 August | 17.4600 | .. |
| 31 August | 17.0800 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 September | 16.7300 | .. |
| 2 September | 16.6800 | .. |
| 3 September | 16.5300 | .. |
| 6 September | 16.5200 | .. |
| 7 September | 15.9900 | .. |
| 8 September | 16.0200 | .. |
| 9 September | 16.0000 | .. |
| 10 September | 15.7100 | .. |
| 13 September | 15.8200 | .. |
| 14 September | 15.7100 | .. |
| 15 September | 15.6000 | .. |
| 16 September | 15.9300 | .. |
| 17 September | 16.1300 | .. |
| 20 September | 16.6200 | .. |
| 21 September | 16.6600 | .. |
| 22 September | 16.2800 | .. |
| 23 September | 16.2400 | .. |
| 24 September | 16.2900 | .. |
| 27 September | 16.5500 | .. |
| 28 September | 16.6600 | .. |
| 29 September | 17.3500 | .. |
| 30 September | 17.4300 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 October | 17.3000 | .. |
| 4 October | 17.0800 | .. |
| 5 October | 17.0100 | .. |
| 6 October | 17.0700 | .. |
| 7 October | 17.1600 | .. |
| 8 October | 17.1900 | .. |
| 11 October | 17.3700 | .. |
| 12 October | 17.2900 | .. |
| 13 October | 17.1200 | .. |
| 14 October | 16.9800 | .. |
| 15 October | 16.9300 | .. |
| 18 October | 16.8200 | .. |
| 19 October | 16.9500 | .. |
| 20 October | 17.0800 | .. |
| 21 October | 17.1100 | .. |
| 22 October | 16.8500 | .. |
| 25 October | 16.3700 | .. |
| 26 October | 16.3200 | .. |
| 27 October | 16.4200 | .. |
| 28 October | 16.2200 | .. |
| 29 October | 15.8000 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 November | 16.2100 | .. |
| 2 November | 15.9100 | .. |
| 3 November | 16.2200 | .. |
| 4 November | 16.1300 | .. |
| 5 November | 15.8600 | .. |
| 8 November | 15.5800 | .. |
| 9 November | 15.4300 | .. |
| 10 November | 15.3200 | .. |
| 11 November | 15.6300 | .. |
| 12 November | 15.4900 | .. |
| 15 November | 15.4300 | .. |
| 16 November | 15.8600 | .. |
| 17 November | 16.1100 | .. |
| 18 November | 15.7600 | .. |
| 19 November | 15.7900 | .. |
| 22 November | 15.8700 | .. |
| 23 November | 15.4000 | .. |
| 24 November | 15.1400 | .. |
| 25 November | 14.5600 | .. |
| 26 November | 14.4800 | .. |
| 29 November | 14.2200 | .. |
| 30 November | 14.5200 | .. |
| Day | Rate | Set date |
|---|---|---|
| 1 December | 14.5500 | .. |
| 2 December | 13.9500 | .. |
| 3 December | 14.0800 | .. |
| 6 December | 13.6400 | .. |
| 7 December | 13.5600 | .. |
| 8 December | 13.5000 | .. |
| 9 December | 13.6500 | .. |
| 10 December | 14.0300 | .. |
| 13 December | 13.5700 | .. |
| 14 December | 13.6600 | .. |
| 15 December | 13.5300 | .. |
| 16 December | 13.4400 | .. |
| 17 December | 13.5600 | .. |
| 20 December | 13.5000 | .. |
| 21 December | 13.4700 | .. |
| 22 December | 13.7400 | .. |
| 23 December | 13.6200 | .. |
| 24 December | 13.6400 | .. |
| 29 December | 13.5000 | .. |
| 30 December | 13.2400 | .. |
| 31 December | 13.2000 | .. |