どれが一番やばいと思う？

中国、22年の出生率1.09　現地報道、日本を下回る
https://www.nikkei.com/article/DGXZQOGM1647U0W3A810C2000000/

韓国の出生率、「0.78の衝撃」：日本よりも少子化が深刻になった訳
https://www.nippon.com/ja/in-depth/d00915/

https://www.wilsoncenter.org/blog-post/ukraines-demography-second-year-full-fledged-war
The total fertility rate (TFR) in 2021 was 1.2, and for 2022 it is expected to be 0.9. Since the births planned before the war were still delivered in 2022, a much more dramatic drop in fertility rate is expected in 2023: it will most probably achieve 0.7, and this level will remain at least until the end of the war.