Companies registered by month in 1958
- January - 207 companies registered
- February - 192 companies registered
- March - 245 companies registered
- April - 252 companies registered
- May - 188 companies registered
- June - 201 companies registered
- July - 156 companies registered
- August - 163 companies registered
- September - 168 companies registered
- October - 211 companies registered
- November - 171 companies registered
- December - 269 companies registered