analysis: Analyze Indonesia's trading partners

[Menjadianjay]

Description:
Analyze Indonesia's trade relationships with major export destinations and import sources.

Goal:
Identify Indonesia's most important trading partners and how their importance changes over time.

Steps:

1. Group data by trading partner.
2. Rank export destinations.
3. Rank import sources.
4. Calculate market share.
5. Compare trade values.
6. Analyze partner growth.
7. Visualize the results.