1981

1981: 18 235 companies

jaanuar 1 464 companies

veebruar 1 629 companies

märts 1 835 companies

aprill 1 690 companies

mai 1 564 companies

juuni 1 567 companies

juuli 1 400 companies

august 1 366 companies

september 1 522 companies

oktoober 1 405 companies

november 1 405 companies

detsember 1 388 companies