How do I limit the clicks numbers to 9?

How do I limit the clicks numbers to 9?

I created a lock that opens when you click "777" and I want to limit the
clicks to 9. How do I do that?
var numberOfClicks1 = 0;
var numberOfClicks2 = 0;
var numberOfClicks3 = 0;
$('#clickme1').on('click', function() {
numberOfClicks1++;
$('#click-counter1').html(numberOfClicks1);
})
$('#clickme2').on('click', function() {
numberOfClicks2++;
$('#click-counter2').html(numberOfClicks2);
})
$('#clickme3').on('click', function() {
numberOfClicks3++;
$('#click-counter3').html(numberOfClicks3);
})
$('#down-click1').on('click', function() {
numberOfClicks1--;
$('#click-counter1').html(numberOfClicks1);
})
$('#down-click2').on('click', function() {
numberOfClicks2--;
$('#click-counter2').html(numberOfClicks2);
})
$('#down-click3').on('click', function() {
numberOfClicks3--;
$('#click-counter3').html(numberOfClicks3);
})