Preliminary estimates for the first half of 2015 show a small increase in year-on-year growth of the non-oil economy to 4.2 percent (from 4.0 percent in 2014). Strength in the construction and service sectors offset a relatively poor agricultural harvest and continued weakness in the manufacturing sector due to the large depreciation of the Cedi earlier in the year and the ongoing electricity crisis. Oil and gas production is expected to increase by around 3 percent in 2015.