"Maersk, the second-largest shipping conglomerate, saw its operating costs increase from $33.1 billion in 2019 to $37.7 billion in 2021. But that increase does not explain a massive increase in revenues, which increased from $38.9 billion to $61.8 billion. Its profits increased from essentially zero to $18 billion. The combined profits of Maersk and two other large shipping companies — CMA-CGM and Hapag-Lloyd — increased from $155 million in 2019 to $46.6 billion in 2021. Across the shipping industry, profits were up over 200%."