Based on the data provided, the R&D budget for Health and Medical Sciences in Chile has experienced a downward trend from 2013 to 2023, with a notable decline starting in 2018. In 2023, the budget stood at 9.07 units of Total GBARD, reflecting a year-on-year decrease of 5.32%. Over the last five years, from 2018 to 2023, the Compound Annual Growth Rate (CAGR) was -1.7%, indicating a consistent reduction in investment. Interestingly, this declining trend is forecasted to continue, with a projected 5-year CAGR of -5.19% from 2024 to 2028, resulting in a forecasted total decrease of 23.39% by 2028.

Future trends to watch for include:

The impact of economic and political changes in Chile on R&D funding priorities.
Potential shifts in global health priorities and funding from international bodies that might influence local R&D budgets.
Advancements in health and medical sciences technologies that may either necessitate increased funding or offer cost-saving innovations.