计算SQL Server 2008中每个国家/地区的人数

I have two tables:
Table 1:

我有两张桌子:表1:

------------------------------
|Country    |Emp Level  |Name|
|-----------|-----------|-----
|UK         |Staff      |A
|US         |Admin Staff|B
|CA         |Staff      |C
|NL         |Admin Staff|D
|MN         |Intern     |E
|IN         |Staff      |F
|UK         |Staff      |G
|US         |Admin Staff|H
------------------------------
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