Type II: Metal and machinery industries. This type includes (9) basic metal, (10) fabricated metal products, (11) machinery and equipment, and (12) transport equipment.

Type III. Chemical industries. This type include (13) leather and fur products, (14) pulp and paper products, (15) printing processing, (16) chemical matter, (17) chemical products, (18) petroleum and coal products, (19) rubber products, and (20) plastic products.

Type IV: Electric and electronic industries. This type includes (21) electrical and electronic machinery, and (22) precision instruments. With this classification, the data are thus reorganized as shown in Table 7 into two parts (1) the shares of type calculated by region and (2) the shares of region calculated by type. We can see that the total number of manufacturing establishment units increased from 28,771 in 1966 to 158,609 in 1996, an increase of 5.5 times in 30 years. Apparently, these manufacturing establishment units were not evenly distributed by type and by region.

     Type I, industries directly related to people's livelihood, predominated in every region in 1966 and on the whole it had a share of 66 percent, but its importance declined as in 1976 when the average share reduced to 44 percent, and it reduced further to 24 percent by 1996. It is notable that the share of Type I in the East region was still as high as 55 percent in 1996 and remained predominant among the four types in this region.

     Type II, metal and machinery manufacturing, ranked next to Type I in importance until 1981, and from 1986 onwards its share surpassed Type I in the North, Central and South regions. On the average, the share of Type II increased from 18 percent in 1966 to 44 percent in 1996, an increase of 2.5 times.

     Type III, chemical industries, had a share of 14 percent in 1966 and 20 percent in 1976, but this share did not change much as it remained around 22 percent until 1996.

     Type IV, electric and electronic industries, had a share of only 2 percent in 1966 but its share was 10 percent in 1996, an increase of five-fold.