In 2023, the U.S. government budget allocation for R&D stood at $171.5 billion in PPP. The forecasted allocations show a consistent upward trajectory from 2024 to 2028, with annual growth ranging from approximately 1.3% to 1.5%. The Compound Annual Growth Rate (CAGR) over this period is about 1.4%, indicating steady investment but at a moderate pace.

Future trends to watch for:

Impact of economic conditions on budgetary adjustments.
Potential shifts toward key sectors such as AI, clean energy, and biotechnology.
Influence of political changes on funding priorities.