Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: Six students participate in an apple eating contest. The graph shows the number of apples eaten by each participating student. Aaron ate the most apples and Zeb ate the fewest. How many more apples than Zeb did Aaron eat?

[asy]
defaultpen(linewidth(1pt)+fontsize(10pt));
pair[] yaxis = new pair[8];
for( int i = 0 ; i < 8 ; ++i ){

yaxis[i] = (0,i);

draw(yaxis[i]--yaxis[i]+(13,0));
}
draw((0,0)--(0,7));
draw((13,7)--(13,0));

fill((1,0)--(1,2)--(2,2)--(2,0)--cycle,grey);
fill((3,0)--(3,3)--(4,3)--(4,0)--cycle,grey);
fill((5,0)--(5,6)--(6,6)--(6,0)--cycle,grey);
fill((7,0)--(7,4)--(8,4)--(8,0)--cycle,grey);
fill((9,0)--(9,3)--(10,3)--(10,0)--cycle,grey);
fill((11,0)--(11,1)--(12,1)--(12,0)--cycle,grey);
label("0",yaxis[0],W);
label("1",yaxis[1],W);
label("2",yaxis[2],W);
label("3",yaxis[3],W);
label("4",yaxis[4],W);
label("5",yaxis[5],W);
label("6",yaxis[6],W);
label("7",yaxis[7],W);
label("Students/Participants",(6.5,0),S);
label("Results of an Apple Eating Contest",(6.5,7),N);
label(rotate(90)*"$\#$ of Apples Eaten",(-1,3.5),W);
[/asy]
user