Life after death?

Hi
"Good Friday" tomorrow for all those Christians out there!
My previous post Most Americans don't believe in the resurrection has already declared my surprise at latest statistical findings, but this post is concerned with the concept of "Life after death"
Obviously one does not need to be a Christian to believe in another life following this earthly existence!
Many religions encompass this issue as part of their faith.
It is also true to say that one does not necessarily have to be religious in order to believe in "life after death"
My question is this- how many people believe in life after death regardless of their faith?
Get in touch to discuss!