£0.46 per unit
£2.21 per unit
£2.25 per unit
£3.87 per unit
£4.88 per unit
£5.25 per unit
£5.71 per unit
£8.74 per unit
£9.92 per unit
£15.77 per unit
£7.70 per unit
£10.59 per unit
£10.46 per unit
£8.58 per unit
£15.09 per unit
£22.58 per unit