Conditional Counters

I need to count problems per each client.

Input:
Client Problem
1001 Minor
1001 Critical
1002 Minor
1002 Minor
1005 Critical
1005 Minor
1005 Major
1005 Major
1006 Major
1006 Major
1008 Minor
1008 Critical
1008 Critical

Output that I need:
Client Min Maj Critical
1001 1 0 1
1002 2 0 0
1005 1 2 1
1006 0 2 0
1008 1 0 2

Thank you