The subject asked, "How to check the average credit card usage limit for six months?" The search steps are as follows:

1. Visit the credit card issuer official website or use the mobile phone application provided by it, and log in to the account with the user name and password.

2. Log in successfully and navigate to the account summary or transaction history page.

3. On the Transaction History page, look for date range options or filters.

4. Find out the total transaction amount or bill amount of each month and add them up.