Google 工作表查询 - ColX 的总和取决于 ColY

Google Sheets Query - Sum of ColX depending on ColY

所以我有以下数据:

|Country    | Shop    | Qty |
-----------------------------
|Austrailia | Shop 1  | 3
|Austrailia | Shop 2  |
|Austrailia | Shop 3  | 
|Austrailia | Shop 4  | 
|Japan      | Shop 5  | 10
|Japan      | Shop 6  | 1
|Japan      | Shop 7  | 
|Japan      | Shop 8  | 
|Japan      | Shop 9  | 
|Japan      | Shop 10 | 
|Austria    | Shop 11 |
|Belgium    | Shop 12 | 
|Belgium    | Shop 13 | 
|Belgium    | Shop 14 | 45
|Belgium    | Shop 15 | 
|Belgium    | Shop 16 | 
|Belgium    | Shop 17 | 
|Belgium    | Shop 18 | 
|Denmark    | Shop 19 |     
|Finland    | Shop 20 | 2

我想在另一个选项卡中创建另一个 table 来查询此 table 并为我提供每个国家/地区不同商店数量行的总和。因此,例如,它会输出以下内容:

|Country    | Qty
-----------------
|Austrailia | 3
|Japan      | 11
|Austria    | 0
|Belgium    | 45
|Denmark    | 0 
|Finland    | 2

我一直在使用 QUERY 命令,但无法让它输出我需要的内容:(

=QUERY(A1:C21,"Select A,sum(C) group by A",1)