Companies registered by month in 1958
- January - 202 companies registered
- February - 188 companies registered
- March - 244 companies registered
- April - 248 companies registered
- May - 183 companies registered
- June - 192 companies registered
- July - 153 companies registered
- August - 159 companies registered
- September - 163 companies registered
- October - 209 companies registered
- November - 167 companies registered
- December - 266 companies registered