1987

1987: 31 621 companies

一月 2 550 companies

二月 2 222 companies

三月 2 625 companies

四月 3 904 companies

五月 2 917 companies

六月 2 742 companies

七月 2 659 companies

八月 2 728 companies

九月 2 535 companies

十月 2 368 companies

十一月 2 179 companies

十二月 2 192 companies