Api 带有AlphaVantage的符号后缀

我找不到不同符号和交易所的文档，我能找出TSE或TSE作为加拿大交易所的后缀。我只是想知道如何检索以下证券的价格：

我尝试了以下多种变体：

https://www.alphavantage.co/query?
function=TIME_SERIES_DAILY
&symbol=TSX:AW.UN
&apikey=MYKEY

对句号进行编码-不起作用

https://www.alphavantage.co/query?
function=TIME_SERIES_DAILY
&symbol=TSX:AW%2EUN
&apikey=MYKEY

移动后缀-无效

https://www.alphavantage.co/query?
function=TIME_SERIES_DAILY
&symbol=TSX:UN:AW
&apikey=MYKEY

---

在使用搜索符号api之后，我使用了以下查询来了解它：

https://www.alphavantage.co/query?
function=SYMBOL_SEARCH
&keywords=Revenue%20Royalties
&apikey=MYKEY

它返回：

    {
        "1. symbol": "AW-UN.TRT",
        "2. name": "A&W Revenue Royalties Income Fund",
        "3. type": "Equity",
        "4. region": "Toronto",
        "5. marketOpen": "09:30",
        "6. marketClose": "16:00",
        "7. timezone": "UTC-05",
        "8. currency": "CAD",
        "9. matchScore": "0.6800"
    },
    {
        "1. symbol": "AW_U.TRT",
        "2. name": "A&W REVENUE ROYALTIES INCOME FU",
        "3. type": "Equity",
        "4. region": "Toronto",
        "5. marketOpen": "09:30",
        "6. marketClose": "16:00",
        "7. timezone": "UTC-05",
        "8. currency": "CAD",
        "9. matchScore": "0.6800"
    }

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你知道为什么它会发送1吗。还是2？