The scale on the graph is very large.
Oops, you are right... I missed a zero...
The yellow line is the total number living with HIV and reflects both deaths and new cases.
If the yellow line shows those living with HIV then the blue line should be added to it as new cases, but the grey line should be deducted as they are dead and are no longer living with HIV any more.
It should be the Brown line that does not have the grey line deducted and teh blue line added to show the total people who have had it so far.
As new people get the disease they remain counted in the yellow line until they are dead, while with the brown line the dead are included as people who have had HIV.
As I said, the chart does not make sense because the brown line should increase with the area under the blue line being added every year, but the yellow line should add the blue volume but deduct the grey area because they are dead and not living with HIV any more.
I think the data for the 1990s is BS.
The data from the 1990s is clearly bullshit, but the whole chart looks suspect... when you have a disease that kills three to four times faster than it spreads... 80K new cases, compared with about 350K deaths per year supposedly at the moment... three times more than Covid... but Covid has just been a year and a bit.
If the problem with HIV spread is indeed drug addicts sharing needles that can be mitigated with a program where the state sponsors the exchange of discardable needles at no cost in pharmacies. This has been done in several western countries and it seems to curb HIV spread quite decently. The preventative costs are so low it is better than having to pay for the care of these people or the ones they would infect.
That is the European way... how about the Asian way. Execute drug dealers, and maybe intercept drugs and put in additives like chemical castration drugs...