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This post is following of the above post.
In this post I will make a few graphs to show relationship between lttl and other variables.
First, lttl and region.
On the boxplot, I displayed median values too. I see Europe & Central Asia has the smallest median value while Sub-Saharan Africa has the largest median value.
Next, lttl and group.
I see High Income group has the smallest median value while Low Income has the largest median value.
Next, lttl and year.
I see there are not big differences between years.
According to above graphs, I find the more income, the less lead time to import, Sub-Saharan Africa has the largest lead time to import while Europe & Central Asia, North America has smaller one, there is not so much differences between years.
That's it. Thank you!
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