How difficult is it (statistically with curves) to achieve the following scores on these 6 AP exams?

Hi everyone! So I recently enrolled at the college I will be attending, so I started to research AP and exemption credit now that I know exactly what I need to do and what I am able to accomplish. So, I have a question about the difficulty of the following 6 AP exams. Could you please tell me how difficult it is to achieve the following scores on these 6 AP Exams (Obviously I’ll be shooting for 5’s on all of them, but with a limited amount of time (I plan on beginning to study in mid-February), I would like to know what to prioritize, and if I can achieve the following scores, I’ll get the same amount of credit as I would if I got 5’s on all of them, which I highly doubt I could do.

AP Calculus AB: 5 (Does anyone know historically what percent (minimum) is necessary to achieve a 5?)

AP English Language and Composition: 4 (Does anyone know historically what percent (minimum) is necessary to achieve a 4?)

AP European History: 5 (Does anyone know historically what percent (minimum) is necessary to achieve a 5?)

AP Spanish Language and Culture: 3 (Does anyone know historically what percent (minimum) is necessary to achieve a 3?)

AP Microeconomics and AP Macroeconomics: 4 on Both (both need to be taken to receive credit) (Does anyone know historically what percent (minimum) is necessary to achieve a 4 on both of these exams?)

Here’s some more information. For the first 4 AP Exams I listed, I am currently enrolled in that class, for the economics courses, I will be self-studying, but I took an economics elective and have basic knowledge of the subject in both macro and microeconomics, so it won’t be completely brand new.

Also, just out of curiosity, how hard is it to achieve the following scores if I self-studied the subject:

AP Calculus BC: 5 (the only difference being that I will only be self-studying the “C” section of the curriculum, since I am currently enrolled in Calculus AB)

AP Art History: 4

AP Music Theory: 4

AP World History: 5

Thanks so much everyone.

http://appass.com/calculators/home

@skieurope Lol, I should have used that, but never knew about it. Thanks so much.