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Compared with 1993, the former proportion decreased by 1.6 percentage points and the latter decreased by 0.3 of a percentage point.
The survey results also showed that some 18,900 construction establishments operated in 1994.
Some 40.6% of the construction establishments were engaged in decoration, repair and maintenance of erected buildings and structures. They accounted for $25.1 billion or 14.4% of the gross output.
On the other hand, the general trade contractors operating at construction sites, though totalling only about 5.7% of the establishments, accounted for $106 billion or 60.9% of the gross output.
The rest of the construction establishments consisted mostly of special trade contractors, such as contractors specialising in electrical and mechanical fittings. These contractors constituted 53.7% of the establishments in the construction sector, and accounted for $43.1 billion or 24.7% of the gross output.
The survey did not cover labour-only sub-contractors who mainly supplied labour to work on a job-to-job basis. However, the gross value of construction work performed by these sub-contractors had already been included in that performed by those contractors commissioning their services.
Apart from construction establishments, the survey also enumerated establishments engaged in (i) real estate development, leasing, brokerage and maintenance management services, and (ii) architectural, surveying and project engineering services.
The gross output performed by establishments engaged in real estate development, leasing, brokerage and maintenance management services amounted to $121.4 billion in 1994, representing an increase of 33.8% over 1993.
This comprised $50.5 billion for service and rental income, $69.3 billion for the gross margin of real estate development projects (excluding land price appreciation) and $1.5 billion for other incomes.
Among the real estate development projects, the value accrued to private sector projects in 1994 was $103.4 billion, representing an increase of 32.9% over the corresponding value in 1993. The increase was largely due to increased work done in residential buildings, office buildings and multi-purpose commercial premises.
The total project outlays amounted to $40.9 billion which included, for instance, payments to contractors and interest payments.