Israel’s foreign currency reserves soared in December by a record $3.64 billion to end the year at a new all-time high of just over $126 billion. In 2019, the Israeli Shekel appreciated against all major Western currencies and became the world’s strongest currency.

https://www.boi.org.il/en/NewsAndPublications/PressReleases/Pages/7-1-2020.aspx

https://www.calcalistech.com/ctech/articles/0,7340,L-3777323,00.html

https://en.globes.co.il/en/article-why-the-shekel-is-the-worlds-strongest-currency-1001296566