From 2013 to 2023, the output of scientific research and development in the US experienced steady growth, peaking at $387.71 billion in 2023. Year-on-year variations show fluctuations, such as the notable increase of 14.37% in 2019, followed by more moderate growth percentages in recent years. The compound annual growth rate (CAGR) over the past five years stands at 8.52%, pointing to a consistent upward trend.

From 2024 onwards, forecasts suggest the output will continue to rise, reaching $494.42 billion by 2028. The forecasted 5-year CAGR is 3.84%, indicating a slower growth rate compared to the previous period but stable enough to maintain the upward trajectory. By 2028, the output is expected to have increased by 20.75% from 2023 levels.

Future trends to watch for:

Potential impacts of policy changes and funding on R&D spending.
Technological breakthroughs that could accelerate growth.
Economic factors and global competition affecting investment in scientific research.