Average trajectory of multiple 2D random walk trajectories

How would I plot the average trajectory of multiple 2D random walk traces constrained between two points? Here is the code I am using:

clc
clear all

%Ask for number of rivers
NumberOfSimulations = input('How many rivers? \n');

%Ask for number of steps
n = input('How many steps? \n'); % number of steps, nt increasing and n(t-1) decreasing

%StartPoint
x0=0; 

%End point after n steps
xtarg=40; 

Saved=NaN*zeros(n+1,NumberOfSimulations+2); %Initializes Array
Saved(1,:)=x0; %Fills first row with x0 value
Saved(n+2,:)=xtarg; %Fills last row with xtarg value

for q = 1:NumberOfSimulations
    
  unifs = rand(n+1,1);
  x = x0;
  
  for i = 0:(n-1)
      
      t = (1-(xtarg-x)/(n-i))/2;  
      
      if unifs(i+1,1) <= t 
          x = x-1;
      else
          x = x+1;
      end 
      
      Saved(i+2,q) = x;
         
  end
  
end

figure(1);
hold on; 
plot(Saved); 
plot(mean(Saved,2),'k','Linewidth',2.5);