Tracking the mainmenu

I need help to track the clicks in my menu.
I have a container with automatic generated ul and li elements.
There are links to the categories and sub categories in this elements and i would like to know how often they were visited.

for example:

<div class="s5-category-tree">
<div class="container">
<div id="navigation" class="navbar navbar-default" role="navigation">
<div class="menu-kategorien-container">
<ul id="menu-kategorien-de-2019-09-06" class="nav navbar-nav">
<li class="fa fa-bars menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children">

<a>Main 1</a>
<ul class="sub-menu" style="display: none;">
<li class="x">
<a href="/target1">Target 1</a>
</li>
<li class="x">
<a href="/target2">Target 2</a>
</li>
<li class="y">
<a href="/target3">Target 3</a>
<ul class="sub-menu" style="display: none;">
<li class="z">
<a>Target 3</a>
</li>
<li class="a">
<a href="/subtarget1">Sub Target 1</a>
</li>
<li class="a">
<a href="/subtarget2">Sub Target 2</a>
</li>
<li class="c"><a href="//subtarget3"><img src="https://website.de/subtarget.jpg">
</a>
</li>
</li>
</ul></ul></ul>
</li>
</div>
</div>
</div>
</div>