1930

1930: 162 companies

Ιανουάριος 16 companies

Φεβρουάριος 8 companies

Μάρτιος 13 companies

Απρίλιος 10 companies

Μάιος 16 companies

Ιούνιος 12 companies

Ιούλιος 7 companies

Αύγουστος 11 companies

Σεπτέμβριος 7 companies

Οκτώβριος 13 companies

Νοέμβριος 15 companies

Δεκέμβριος 34 companies