Thank you for your appreciation of the EBC platform's historical data capabilities. We are pleased that the platform's long-term candlestick data can assist with your strategy backtesting. Regarding the slight deviation in early data for some cross-currency pairs, we have submitted your feedback to our technical team for evaluation and optimization. Currently, data from recent years has reached a high level of accuracy, and we will continue to improve the integrity and accuracy of our historical data. If you have further suggestions or discover specific data issues during use, please feel free to contact us. Thank you for your support! Wish you successful trading!