Based on the data provided:
- 2024: 1.8129 Billion Kilograms
- 2025: 1.7402 Billion Kilograms
- 2026: 1.6682 Billion Kilograms
- 2027: 1.597 Billion Kilograms
- 2028: 1.5264 Billion Kilograms
Year-on-year variations:
- 2025: -4.01%
- 2026: -4.14%
- 2027: -4.27%
- 2028: -4.42%
Compound Annual Growth Rate (CAGR) for 2024-2028: -4.21%
Future trends indicate a consistent decline in the production of limestone and gypsum. This might be due to factors such as resource depletion, changes in regulatory environments, or shifts in market demand. Monitoring technological advancements and policy changes in the industry will be crucial for anticipating further trends.