Ukrainian currency's 19% gain makes it the world's performer in 2019.
Russian ruble with a revaluation at 12% came second. The Egyptian pound, Thai baht, and Israeli shekel complete the top five of best-performing currencies, Bloomberg wrote.
The world-beating hryvnia rally may be helping persuade more Ukrainians that the grass isn't greener beyond the country's borders.
While Polish wages were four times the equivalent in Ukraine in 2016, they are now just 2.5 times, according to the central bank, which also said there have been fewer internet search requests for employment abroad.
As UNIAN reported earlier, the National Bank of Ukraine set for Saturday, December 21, an official hryvnia rate to the dollar at UAH 23.33, which is the best indicator for the national currency since January 2016.
In November, the hryvnia rose 3.4% to the dollar and by 13.4% over the 11 months of 2019.