单位：亿美元

月份

金额

1

               32,308.93

2

               32,023.21

3

               32,125.79

4

               32,196.68

5

               31,917.36

6

               32,051.62

7

               32,010.57

8

               31,851.67

9

               31,663.82

10

               31,206.55

11

               30,515.98

12

               30,105.17