Do pine trees have different yearly cycles where one year produces tons of needles and the next year cones?

Question

This year I have a ton of pine needles, where as last year I had a ton of pine cones. Do these trees cycle yearly like this?

Answer 1

Click below: http://koning.ecsu.ctstateu.edu/Plant_Biology/Pinus.html

2.) http://pubs.caes.uga.edu/caespubs/pubcd/B1284.htm (scroll down)