Crafting a cautious response

I think we can approach this carefully by asking for a timeframe and clarifying what "德甲第一" means. I want to differentiate "成功过人" from "过人成功数" and discuss "助攻" counts, making sure to keep it concise. I could say something like, "这个说法可能成立，取决于统计范围和时间窗口..." and then ask if the user wants me to look up authoritative sources for more exact data. I should also suggest some options to clarify their request regarding timeframes and metrics.