Shock absorber test evaluation

Hello, I had a shock absorber test done today. The dampers are supposed to be ok, only the rear is not quite so fit anymore because of the difference of 13%. But if I look at the diagrams I find that the front axle looks rather different, but the rear axle is quite similar. What exactly do these 13% say, so height of the rash, time or a combination of several parameters? They also told me that one would have to see 3 impacts. But in the back I see only 2, if I use the Can someone tell me something about the evaluation? According to the test, the dampers are really ok or how close are they to the “wear limit”? The car (Civic) has about 105tkm on the clock. Mounted were 205/55 16 winter tyres, if that is important. Likewise, there were 4 summer tyres in the trunk. Greetings Joker