Any idea, how frequently the market data changes for currency feeds?

I came across a article where it mentions Reuters have an update on API where it changes the currency feeds every 100 ms it was in 2016.

Any idea how frequently it changes the feeds in 2018..

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    User: "Gurpreet"
    Accepted Answer

    Hi @pankaj.singh For a real time feed, update rate is solely dependent on the market. Some sparsely traded instruments may only get few updates in the whole day, while active instruments might get few thousand updates in a second - depending on how frequently market is pricing them. Currencies are no different.

    Elektron also offers an option to get conflated data - where the update rate is predetermined at a reduced rate for applications that do not have a tick by tick requirements. Typically this conflation is set to 300 ms for quotes and no conflation on trade messages. Market data system has to be configured to provide this conflation service; its not available by default.