Why do nouns and verbs which are stressed differently all exhibit the same variation?

I recently stumbled upon an interesting quirk regarding words that are both nouns and verbs. They seem to all follow the same stress pattern. Here are a few examples:

NOUNS

• I have a really long address.


• There is a huge contrast between winter and spring.


• Not a single object is blue.


• I'm not very good at creating produce.

VERBS

• Make sure you address him properly.


• I try to contrast the two twins in my head.


• He will object to any change you propose.


• Produce the paper right this instant!

Why do the nouns have stresses on the first syllable and the verbs have stresses on the last syllable? Is there a good reason for this, or is it just coincidence?

These are just the examples I thought of - I'm sure there are more. There are also some "noun/verb"s that have the same stress:

That was a huge surprise! Next time I'll surprise you!

But I've yet to find a counterexample - one where the noun has an ending stress and the verb has a starting stress.