中国香港5月零售销售额年率 2.4%，前值-2.30%。

Group 1 - The core point of the article indicates that Hong Kong's retail sales in May increased by 2.4% year-on-year, contrasting with a previous decline of 2.3% [1] Group 2 - The positive growth in retail sales suggests a potential recovery in consumer spending in Hong Kong's economy [1] - The change from negative to positive growth may indicate improving market conditions and consumer confidence [1]