How to Add Text or Number to Figure in Matlab

clc
clear all
close all
% City locations of TSP
Data=[1 39.57 26.15
      2 36.26 23.12
      3 33.48 10.54
      4 37.56 12.19
      5 38.42 13.11
      6 37.52 20.44];
[x y] = size(Data);

title('Visualization of a random TSP route');
xlabel('X cooridnate')
ylabel('Y coordinate')
hold on
plot(Data(:,2),Data(:,3),'^r','MarkerSize',10,'LineWidth',2)
 
for i=1:x
    text(Data(i,2)+0.3,Data(i,3)+1.2, num2str(i),'FontSize', 15);
    text(Data(i,2)-0.3,Data(i,3)+1.2, 'city','FontSize', 15);
end
line(Data(:,2),Data(:,3),'LineStyle', '-', 'LineWidth',2);