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Figures from 2019 can not be achieved because the pre-season was completely absent, but some countries are recording quite good results even in such conditions. Take for example Croatia where some regions have up to 60% capacity utilization, and the average is around 40% - and on the other side Greece is only at 7% compared to last year.
Oh, I should have mentioned, the occupancy is compared to the same months from 2019, not the entire season, that is done for, even if we go full blast with the whole traveling around Easter there is no chance of catching up. But on the same time, we don't have strong summer tourism since we're landlocked so losses from the summer months might be slimmer...don't know....
What we draw most tourist is city breaks, and it's that what's generating around half of what was before, mountain resorts are dead, probably the numbers might be better in campings and individual booking but still, I can see on all the live cams around the country, it's nothing like 2019.
As for Greece, they might pay the price for being a bit too far away for the worried tourists, it's one thing to go back from Croatia to Germany and another one from Greece, especially if you end up stranded on some island, not all have international airports like Mykonos.
A trip from Vienna or Muchen to Split by car seems doable without headaches in ~8h, try that to any Greek island.