Amazon defines this as:
Includes commissions, related fulfillment and shipping fees, and other third-party seller services.
2014: $11.747 billion, 2015: $16.086 billion, 2016: $22.993 billion.
Last reported quarter 2024 Q4 it was $47.49 billion, up by 9% year-over-year from $43.56 billion. From $140.05 billion in 2023 it increased by 11% to $156.15 billion in 2024.