It's the doughnut chart titled Trending lead types on the Quote Engines tab. Each slice is a quote-engine product — the bigger the slice, the more leads that product has generated for you.
Hover any slice to see the exact lead count. Only leads with a point of contact (phone, cell, or email) are counted, so the totals match what's in your Leads table.
Use it to tailor what you put in front of your audience — if Medicare is your biggest slice but you've been pushing ACA in your marketing, your offers and your demand are out of alignment.