1973

1973: 75 companies

Ιανουάριος 16 companies

Φεβρουάριος 4 companies

Μάρτιος 5 companies

Απρίλιος 6 companies

Μάιος 18 companies

Ιούνιος 2 companies

Ιούλιος 6 companies

Αύγουστος 4 companies

Σεπτέμβριος 4 companies

Οκτώβριος 2 companies

Νοέμβριος 2 companies

Δεκέμβριος 6 companies