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timf5758 t1_iqw27cf wrote

If you can get data for every year or every other year, then we can see a trend.

At this point we cannot tell if the raise in price is just a recent event ? Or has the past few years the price being steadily increasing? Or the price is actually on the decline from a previous peak. A lot has happened in 12 years of time.

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robert_ritz OP t1_iqw30pa wrote

There are ups and downs, but the recent inflationary pressures are the cause of most of the increase.

Check out the meat price time series here: https://www.datafantic.com/content/images/size/w1600/2022/10/meat.png

And some fruits here and here.

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philman132 t1_iqw999f wrote

The full time graphs you posted in this comment are much more interesting than 2 time points 12 years apart, can see much more clearly when the increases happen

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InsuranceToTheRescue t1_iqwpayv wrote

I never realized how much seasonal variation there is on the price of strawberries and grapes. Like, I understood there was seasonal variation but I vastly underestimated how big the swings were.

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potatorichard t1_iqwv5xv wrote

As a strawberry/grape fan who lives in the northern Rockies (USA), I am accutely aware of the seasonal variability in prices.

Stonefruits are also highly variable here. Plums can range from $1-$3.50/lb

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robert_ritz OP t1_iqy0bv7 wrote

This subreddit is a fickle mistress. I totally agree that the time series is more interesting.

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thufir-hawat-9999 t1_iqx499o wrote

If you need to refer us to external sources for your data, what is the point of making that ridiculous graph?

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robert_ritz OP t1_iqybazn wrote

Because sometimes one chart doesn’t tell the whole story.

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Nobody4831 t1_iqxg4ch wrote

This graph can be misleading a 5% increase in bacon will look significantly larger than a 5% increase in rice

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robert_ritz OP t1_iqxzq5d wrote

Hence the term slope. The slope of the line tells you the rate of change.

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Nobody4831 t1_iqy7hwz wrote

Slope will look different 2 to 3 dollars is 50% 4 to 6 is 50% bigger difference the slope portrays a 20 cent change the same, but not a 20% change

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robert_ritz OP t1_iqyb7g7 wrote

In percent terms true. I’ll add that chart to the blog post I think.

Alas I can only post one chart at a time here.

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