印尼统计局：印度尼西亚4月外国访客到达人数同比增长9.15%。

Group 1 - The core point of the article is that Indonesia's foreign visitor arrivals in April increased by 9.15% year-on-year [1] Group 2 - The data indicates a positive trend in tourism for Indonesia, suggesting a recovery or growth in the travel sector [1] - This growth in foreign visitors may have implications for various industries, including hospitality, retail, and transportation [1] - The increase in visitor numbers could lead to higher revenue generation for businesses reliant on tourism [1]