I need your piece of advice and information from my more senior orcale's colleges:

Can you give me a roughly statistic numbers or explaination about these things :

1. How many OCP certified we have so far ?
2. what percent of DBA works as a contractors ?
3. Who are the big Oracle consulting companies and how they became big?
4. How many DBA jobs is a normal rate opens each month in USA if we are not in a recession
5. How many DBA reday to start a new job is a normal rate each month in USA if we are not in a recession
6. What is the source to find out about Oracle experts market share and related stuff ?
7. Who is Contract , who is perm, and between these two who is more happier, who is richer nd who is winner

Please put some lights in this subject ....