Based on the provided data, the export of polypropylene from Australia is forecasted to decrease steadily from 35.888 million kilograms in 2024 to 33.402 million kilograms in 2028. The year-on-year variation shows a consistent decline in export volume, suggesting a negative growth trend. This indicates a declining trend with a Compound Annual Growth Rate (CAGR) of approximately -1.83% over the forecast period. Notably, in 2023, the actual export volume stood at 36.54 million kilograms, indicating an established pattern of reduction in output.

Future trends to watch for:

Global market fluctuations and the impact of international trade agreements or tariffs.
Technological advancements in polypropylene production and their effect on export capacities.
Domestic market demand and its influence on export surplus.
Environmental regulations and their implications for production and transportation.