Leveling off vs Leveling-off

Question

A complete search of the internet has found these results:

Leveling off is the most popular phrase on the web.

Some examples from the web:

Liquid in your inner ear gets disturbed, has trouble leveling off or something.
After leveling off at about 50 percent usage share late last year, Microsoft's Internet Explorer has been on an upward trend, thwarting early attempts to write the browser's obituary.
If you are diabetic and overweight, you need a good diabetic weight loss diet to not only control your weight but also deal with leveling off your blood sugar.
Blood pressure is leveling off.
Now we're at 15,000 feet and leveling off.
You should be at least leveling off by now.
China's growth, meanwhile, is leveling off at 7%, with other developing countries preparing for higher interest rates.
The audience for psychic shows is leveling off.

Some examples from the web:

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Answer 1

More popular!

Leveling off

988,000 results on the web

Answer 2

988,000 results on the web