1991

1991: 44 220 companies

Januar 4 050 companies

Februar 2 270 companies

März 3 073 companies

April 3 991 companies

Mai 4 146 companies

Juni 3 857 companies

Juli 4 439 companies

August 4 189 companies

September 3 325 companies

Oktober 3 791 companies

November 3 518 companies

Dezember 3 571 companies