x-axis:
linear, goes from 0 on the left to 100 on the right.
at point n in the x-axis, you have a greater age than n% of all existing nations in nationstates
basically percentile for age
age is computed as current time - firstlogin of nation
y-axis:
linear, goes from 0 on the bottom to 100 on the top.
at point v on the axis, you have spent v% of time since the creating of your nation in existance, that is, not in cte.
basically goes from always cte to never cte
intensity:
goes from blue (none) to red (highest).
this'll be elaborated on
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intensity is proportional to the number of nations in each pixel/category
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same as above but with nations from 97.5 to 100 on the y-axis removed in order to show cells better
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same as above two but intensity is now squared
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compensates for non-existant nations
that is, a nation which is 10 on the y-axis, or existing 10% of the time, is multiplied by 10, because for every nation in that category there are 9 more that we don't see
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same as above, values squared
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first 29 days of nation are immune to cte because they haven't had 29 days to be inactive. this chart subtracts those 29 days to show a clearer picture. image compensates for missing nations and squares values
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same as above, intensity not squared and first row removed
just as a note, nations which cte and do not return again are not counted in this chart for obvious reasons