1988

1988: 12 479 companies

Januar 841 companies

Februar 985 companies

März 1 144 companies

April 1 047 companies

Mai 1 119 companies

Juni 1 104 companies

Juli 886 companies

August 1 009 companies

September 1 053 companies

Oktober 977 companies

November 1 069 companies

Dezember 1 245 companies