That explanation for skyrocketing rates gained more traction Friday when liner giant Maersk released details of its quarterly performance.

Maersk — which pre-reported record Q2 2021 results on Monday — estimated that global container shipping demand was up only 2.7% in the second quarter versus the same period two years ago, prior to the pandemic. And yet, Maersk's average freight rate (including both contract and spot business) was $3,038 per forty-foot equivalent unit, up 63% from $1,868 per FEU in Q2 2019. The Drewry World Container Index of spot rates rose to $9,371 per FEU this week, 6.7 times what it was two years ago.