a) Data from
1980 to 1992 were the figures of state-owned and collective-owned
construction enterprises. Data from 1993 to 1995 were the figures of all economic types of construction enterprises above towns. The statistical coverage from 1996 to
2001 included the fourth and higher grades construction enterprises (old classification of grades), and that since 2002 included all grades construction enterprises, both general constructing contractors and professional contractors (excluding the construction enterprises of work subcontractors). Therefore the data were not comparable with the data of the previous years. The same as in the following table.
b) The number
of employed persons refers to the annual average number from 1993 to 1997.
c) Data of
2004 were preliminary annual statistics (The same as in the following
tables).
