1997

1997: 20 285 companies

Januar 1 140 companies

Februar 1 131 companies

März 1 243 companies

April 1 267 companies

Mai 1 384 companies

Juni 1 351 companies

Juli 1 422 companies

August 1 913 companies

September 2 387 companies

Oktober 2 743 companies

November 2 323 companies

Dezember 1 981 companies