Companies registered by month in 1980
- January - 823 companies registered
- February - 795 companies registered
- March - 838 companies registered
- April - 817 companies registered
- May - 656 companies registered
- June - 734 companies registered
- July - 717 companies registered
- August - 596 companies registered
- September - 591 companies registered
- October - 807 companies registered
- November - 700 companies registered
- December - 766 companies registered