1981

1981: 17 577 companies

Januari 1 726 companies

Februari 931 companies

Maret 1 431 companies

April 1 637 companies

Mei 1 603 companies

Juni 1 463 companies

Juli 1 677 companies

Agustus 1 442 companies

September 1 412 companies

Oktober 1 562 companies

November 1 236 companies

Desember 1 457 companies