How many companies have adopted formal project management?

Question

Statistically, how many companies world wide have adopted formal project management? And is the number of companies with formal PM increasing or decreasing?

Answer 1

According to some statistics performed in 2007 (I'm afraid I can't provide the reference as this was stated in a PM class I attended), the number of companies who have adopted Formal Project Management is 31% of the total companies.

The number of companies adopting formal PM is actually steadily growing, lately, even legal organizations are adopting formal PM.