1959

1959: 150 companies

janvāris 10 companies

februāris 15 companies

marts 12 companies

aprīlis 12 companies

maijs 10 companies

jūnijs 12 companies

jūlijs 18 companies

augusts 12 companies

septembris 15 companies

oktobris 11 companies

novembris 15 companies

decembris 8 companies