1987

1987: 31 620 companies

1月 2 550 companies

2月 2 221 companies

3月 2 625 companies

4月 3 904 companies

5月 2 917 companies

6月 2 742 companies

7月 2 659 companies

8月 2 728 companies

9月 2 535 companies

10月 2 368 companies

11月 2 179 companies

12月 2 192 companies