Author: Matthew DiLallo, The Motley Fool

It has delivered superior total returns over the past 30 years and it trades at an attractive valuation today (given the growth it sees ahead).

… and I expect to buy even more shares in the future.

In short, it has plenty of room to continue growing its portfolio and payout.

I’ve been steadily adding to my position over the past couple of years by taking advantage of market dips to purchase more shares. With the market slumping in recent months, shares have fallen about 10% from their 52-week high… driving the stock’s dividend yield up over 5.5%.

I’m filling my retirement account with stocks like these.