I was referring to Germany, the largest EU nation. But sure let's look at percentages.

40% of the EU has age of consent 14 or lower. (Germany, Italy, Portugal, etc.) 78% of the EU has it at 15 or lower (France, Sweden, Denmark, etc.)

No 'official line' at 18-21.

its more complicated than that, the age of consent you're listing doesn't necessarily universally apply and is mostly that low when both people are within that age bracket. In Germany for example the age of consent is effectively 16, its more that there's wiggle room to 14, if both parties are under 21.