PhocusWire first produced its visualization of digital travel company quarterly revenues going back decades in November 2019.
Since then the global financial markets have taken a huge hit from the COVID-19 pandemic, as seen in the Q1 version of the chart in July this year.
But the second quarter in the financial calendar was always going to be the one where travel brands were most likely to be hit the hardest.
It was the first full three-month period where travel had effectively shut down.
Most companies in the collection of those that we track brought in some form of revenue during Q2 - but it will be remembered as the quarter when every brand on the planet filed record low figures.
The chart begins in 1995.
Several companies in international markets only report earnings on a half-year basis, which means their revenue numbers on the chart only change twice a year.
Foreign currencies were converted into U.S dollars, using the exchange rate at the time.