Here is a somewhat arbitrary question that piqued my curiosity after Kyle Palmieri returned to practice on Wednesday: How often in recent years have the Islanders had two legitimate, high-end scoring lines?

There are a lot of ways to measure this, none of them especially good. But Natural Stat Trick has stats by line going back to 2007-08, allowing a solid research attempt.

I wanted to know how many Islanders lines since then had played over 300 minutes — approximately 30 games — while scoring more than 50 percent of both expected and actual goals and how many times the Islanders had more than one such line in a season.

The answers: 16 total lines and three years with two or more.