Answer
1945,
93%
Work Step by Step
As per the graph, the highest tax marginal tax rate is the point where the graph goes the highest.
As per the graph, the graph goes highest in 1945.
So, 1945 is the answer.
Also, the point of the plot at 1945 is slightly below the half-point between 90% and 100%, i.e. 93%.
So, it can be estimated to be at 93%.
So, the tax rate for that year was 95%.
