Greece has spent a combined 90 years — almost half of the time since its independence — in financial crisis.

Greece finally gained independence from the Ottoman Empire in 1830 after Great Britain, France, and Russia intervened to help out in the War of Greek Independence. (Fun fact: even poet Lord Byron joined in to support Greece.)
The country has spent 90 out of 196 years since then in financial crisis.
Source: Business Insider via Bank of America