| Day | Rate | Set date | 
|---|---|---|
| 2 January | 18.3600 | .. | 
| 3 January | 18.1200 | .. | 
| 6 January | 18.1200 | .. | 
| 7 January | 17.6900 | .. | 
| 8 January | 16.9200 | .. | 
| 9 January | 16.8600 | .. | 
| 10 January | 17.2400 | .. | 
| 13 January | 17.9500 | .. | 
| 14 January | 17.8900 | .. | 
| 15 January | 18.3100 | .. | 
| 16 January | 18.5400 | .. | 
| 17 January | 18.3200 | .. | 
| 20 January | 18.0100 | .. | 
| 21 January | 17.7500 | .. | 
| 22 January | 18.0500 | .. | 
| 23 January | 17.8600 | .. | 
| 24 January | 18.2200 | .. | 
| 27 January | 18.4400 | .. | 
| 28 January | 18.2400 | .. | 
| 29 January | 18.0900 | .. | 
| 30 January | 18.1400 | .. | 
| 31 January | 18.1500 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 3 February | 18.1600 | .. | 
| 4 February | 18.3000 | .. | 
| 5 February | 18.3000 | .. | 
| 6 February | 18.4100 | .. | 
| 7 February | 18.8600 | .. | 
| 10 February | 18.7900 | .. | 
| 11 February | 18.3800 | .. | 
| 12 February | 18.2600 | .. | 
| 13 February | 18.5000 | .. | 
| 17 February | 17.5500 | .. | 
| 18 February | 17.6000 | .. | 
| 19 February | 17.7400 | .. | 
| 20 February | 17.8400 | .. | 
| 21 February | 17.7100 | .. | 
| 24 February | 17.4300 | .. | 
| 25 February | 17.4700 | .. | 
| 26 February | 17.3500 | .. | 
| 27 February | 17.6400 | .. | 
| 28 February | 17.5500 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 2 March | 17.2200 | .. | 
| 3 March | 17.4300 | .. | 
| 4 March | 17.4200 | .. | 
| 5 March | 17.4100 | .. | 
| 6 March | 17.3800 | .. | 
| 9 March | 17.4400 | .. | 
| 10 March | 17.4800 | .. | 
| 11 March | 17.3900 | .. | 
| 12 March | 17.7500 | .. | 
| 13 March | 17.8700 | .. | 
| 16 March | 17.8200 | .. | 
| 17 March | 17.8600 | .. | 
| 18 March | 17.7700 | .. | 
| 19 March | 17.9800 | .. | 
| 20 March | 17.6800 | .. | 
| 23 March | 17.8000 | .. | 
| 24 March | 17.8500 | .. | 
| 25 March | 17.9100 | .. | 
| 26 March | 17.9800 | .. | 
| 27 March | 17.9100 | .. | 
| 30 March | 17.9700 | .. | 
| 31 March | 18.1400 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 April | 18.4000 | .. | 
| 2 April | 18.3300 | .. | 
| 3 April | 18.7600 | .. | 
| 6 April | 18.9700 | .. | 
| 7 April | 18.8300 | .. | 
| 8 April | 19.1800 | .. | 
| 9 April | 18.9100 | .. | 
| 10 April | 19.0900 | .. | 
| 13 April | 18.8900 | .. | 
| 14 April | 18.5900 | .. | 
| 15 April | 18.6300 | .. | 
| 16 April | 18.9900 | .. | 
| 21 April | 19.0400 | .. | 
| 22 April | 18.7600 | .. | 
| 23 April | 18.7500 | .. | 
| 24 April | 18.8600 | .. | 
| 27 April | 18.9500 | .. | 
| 28 April | 19.1100 | .. | 
| 29 April | 19.4700 | .. | 
| 30 April | 19.6600 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 May | 19.7000 | .. | 
| 5 May | 19.6900 | .. | 
| 6 May | 19.6400 | .. | 
| 7 May | 19.5600 | .. | 
| 8 May | 19.7000 | .. | 
| 11 May | 19.8900 | .. | 
| 12 May | 19.8600 | .. | 
| 13 May | 19.9700 | .. | 
| 14 May | 19.8300 | .. | 
| 15 May | 19.5900 | .. | 
| 18 May | 19.4600 | .. | 
| 19 May | 19.1800 | .. | 
| 20 May | 19.1800 | .. | 
| 21 May | 19.6800 | .. | 
| 22 May | 19.7200 | .. | 
| 26 May | 20.6900 | .. | 
| 27 May | 20.7000 | .. | 
| 28 May | 20.6600 | .. | 
| 29 May | 20.7900 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 June | 20.7900 | .. | 
| 2 June | 20.8200 | .. | 
| 3 June | 21.0700 | .. | 
| 4 June | 21.1600 | .. | 
| 5 June | 21.3000 | .. | 
| 8 June | 21.1300 | .. | 
| 9 June | 21.0300 | .. | 
| 10 June | 21.1800 | .. | 
| 11 June | 21.1000 | .. | 
| 12 June | 21.1000 | .. | 
| 15 June | 21.2500 | .. | 
| 16 June | 21.1200 | .. | 
| 17 June | 21.1100 | .. | 
| 18 June | 21.0600 | .. | 
| 19 June | 21.0900 | .. | 
| 22 June | 21.1900 | .. | 
| 23 June | 21.2900 | .. | 
| 24 June | 21.5700 | .. | 
| 25 June | 21.3100 | .. | 
| 26 June | 21.1700 | .. | 
| 29 June | 20.9900 | .. | 
| 30 June | 20.4100 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 July | 20.6000 | .. | 
| 2 July | 20.7500 | .. | 
| 3 July | 20.8000 | .. | 
| 6 July | 20.5700 | .. | 
| 7 July | 20.0400 | .. | 
| 8 July | 20.0000 | .. | 
| 9 July | 19.9800 | .. | 
| 10 July | 19.8600 | .. | 
| 13 July | 19.9700 | .. | 
| 14 July | 20.0700 | .. | 
| 15 July | 20.2100 | .. | 
| 16 July | 20.3100 | .. | 
| 17 July | 20.1300 | .. | 
| 20 July | 20.2400 | .. | 
| 21 July | 20.2100 | .. | 
| 22 July | 20.4400 | .. | 
| 23 July | 20.6000 | .. | 
| 24 July | 20.7100 | .. | 
| 27 July | 20.7300 | .. | 
| 28 July | 20.7200 | .. | 
| 29 July | 20.6600 | .. | 
| 30 July | 20.4600 | .. | 
| 31 July | 20.4700 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 3 August | 20.2100 | .. | 
| 4 August | 19.9900 | .. | 
| 5 August | 19.8400 | .. | 
| 6 August | 20.0300 | .. | 
| 7 August | 19.8600 | .. | 
| 10 August | 19.6900 | .. | 
| 11 August | 19.5900 | .. | 
| 12 August | 19.7200 | .. | 
| 13 August | 20.0300 | .. | 
| 14 August | 20.0000 | .. | 
| 17 August | 20.0500 | .. | 
| 18 August | 20.0000 | .. | 
| 19 August | 19.8600 | .. | 
| 20 August | 19.8200 | .. | 
| 21 August | 19.6800 | .. | 
| 24 August | 20.0400 | .. | 
| 25 August | 19.7500 | .. | 
| 26 August | 19.7400 | .. | 
| 27 August | 19.7200 | .. | 
| 28 August | 19.8700 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 September | 20.1300 | .. | 
| 2 September | 20.1300 | .. | 
| 3 September | 20.0900 | .. | 
| 4 September | 20.1900 | .. | 
| 7 September | 20.2600 | .. | 
| 8 September | 20.3700 | .. | 
| 9 September | 20.4000 | .. | 
| 10 September | 20.3800 | .. | 
| 11 September | 20.4300 | .. | 
| 14 September | 20.6700 | .. | 
| 15 September | 20.5800 | .. | 
| 16 September | 20.6300 | .. | 
| 17 September | 20.4500 | .. | 
| 18 September | 20.3100 | .. | 
| 21 September | 20.2800 | .. | 
| 22 September | 20.4200 | .. | 
| 23 September | 20.6500 | .. | 
| 24 September | 20.4700 | .. | 
| 25 September | 20.3300 | .. | 
| 28 September | 20.4000 | .. | 
| 29 September | 20.3200 | .. | 
| 30 September | 20.3400 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 October | 20.4500 | .. | 
| 2 October | 20.5000 | .. | 
| 5 October | 20.3600 | .. | 
| 6 October | 20.3500 | .. | 
| 7 October | 20.4500 | .. | 
| 8 October | 20.5500 | .. | 
| 9 October | 20.9000 | .. | 
| 12 October | 20.8300 | .. | 
| 13 October | 20.7000 | .. | 
| 14 October | 20.6400 | .. | 
| 15 October | 20.8100 | .. | 
| 16 October | 20.8100 | .. | 
| 19 October | 20.7900 | .. | 
| 20 October | 20.7100 | .. | 
| 21 October | 20.4100 | .. | 
| 22 October | 20.1100 | .. | 
| 23 October | 19.9800 | .. | 
| 26 October | 20.0200 | .. | 
| 27 October | 19.8500 | .. | 
| 28 October | 19.9000 | .. | 
| 29 October | 19.5900 | .. | 
| 30 October | 19.4500 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 2 November | 19.5500 | .. | 
| 3 November | 19.5000 | .. | 
| 4 November | 19.1500 | .. | 
| 5 November | 19.3800 | .. | 
| 6 November | 19.1900 | .. | 
| 9 November | 19.5000 | .. | 
| 10 November | 19.4500 | .. | 
| 11 November | 19.3600 | .. | 
| 12 November | 19.1400 | .. | 
| 13 November | 19.0100 | .. | 
| 16 November | 19.2700 | .. | 
| 17 November | 19.1500 | .. | 
| 18 November | 19.0400 | .. | 
| 19 November | 19.3400 | .. | 
| 20 November | 19.3600 | .. | 
| 23 November | 19.0100 | .. | 
| 24 November | 19.0500 | .. | 
| 25 November | 19.1800 | .. | 
| 26 November | 18.7500 | .. | 
| 27 November | 18.9500 | .. | 
| 30 November | 18.8400 | .. | 
| Day | Rate | Set date | 
|---|---|---|
| 1 December | 18.4900 | .. | 
| 2 December | 18.3400 | .. | 
| 3 December | 18.0800 | .. | 
| 4 December | 18.0500 | .. | 
| 7 December | 18.2400 | .. | 
| 8 December | 17.9400 | .. | 
| 9 December | 17.8500 | .. | 
| 10 December | 18.2700 | .. | 
| 11 December | 18.1000 | .. | 
| 14 December | 18.0200 | .. | 
| 15 December | 17.8700 | .. | 
| 16 December | 18.0600 | .. | 
| 17 December | 18.5700 | .. | 
| 18 December | 18.5600 | .. | 
| 21 December | 18.6400 | .. | 
| 22 December | 18.4900 | .. | 
| 23 December | 18.6100 | .. | 
| 24 December | 18.7000 | .. | 
| 29 December | 18.3400 | .. | 
| 30 December | 18.2700 | .. | 
| 31 December | 18.2900 | .. |