1981

1981: 18 235 companies

Januari 1 464 companies

Februari 1 629 companies

Maret 1 835 companies

April 1 690 companies

Mei 1 564 companies

Juni 1 567 companies

Juli 1 400 companies

Agustus 1 366 companies

September 1 522 companies

Oktober 1 405 companies

November 1 405 companies

Desember 1 388 companies