Do you know the answer?
Have you lost your grasp of the English language in China?
No, your answer is for a DIFFERENT question; I have a wonderful grasp of the English language!
You say you don’t have the numbers; that does not imply that you do not know the answers.
For example I don’t have the numbers on the masses of the planets but I do know that Mercury is smaller than Earth! And I do not have the numbers, but I know that the amount of rain that Seattle gets annually is less than that seen in Hawaii.
So, again, do you know that the average tariff under Reagan increased?