Sugar Consumption Down 34% Since 1970

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You might be able to see the charts in full if you get to the website via a google search

I am very surprised to see coconut oil as high as this. And also higher than sunflower and olive. I had really never heard of it before caring about diet nor saw anyone using it.

It is, indeed.
It's been getting quite popular among health enthusiasts in the last few years with Mercola and the bunch promoting it.
I think the soap industry may be the largest consumer.
It is also used to extract MCTs for use in the medical and the supplement industries.
There are other industrial applications like using it as base oil for industrial lubricants and as a biodiesel.
It might have been always popular within the Asian communities in the US, too.

It's more cost effective than olive oil for the industry.
The high saturation level could be more favorable, as well.