Based on the provided data, Angola's domestic private health expenditure in US dollars per capita is forecasted to increase incrementally from 42.42 in 2024 to 42.84 in 2028. Considering the absence of 2023 data, we can't determine the exact starting point for year-on-year variations. However, the forecasted period exhibits a consistent, albeit modest, increase year-by-year. Importantly, the compound annual growth rate (CAGR) from 2024 to 2028 implies a stable growth trend in private health spending per capita over the five years.

Future trends to watch for:

Economic conditions impacting disposable income and private health expenditures.
Government policies affecting the healthcare sector and private spending.
Inflation rates and exchange rates potentially influencing per capita spending power.