Hi,
I have data like below

John January 01/01/2004 11
: : :
: January 01/31/2004 84
: February 02/01/2004 45
: : :
: : 02/28/2004 55
: : :
: December 12/01/2004 47
: December 12/31/2004 63
Mark January 01/01/2004 88
: : :
: January 01/31/2004 34
: February 02/01/2004 23
: : :
: : 02/28/2004 57
: : :
: December 12/01/2004 28
: December 12/31/2004 75

................................


I need the answer like this:

John January Average(<all jan numbers>)
John February Average(<all Feb numbers>)
etc...

Mark January Average(<all Jan number>)

likewise for all months, for each person.

Appreciate any help.

thanks,