iPhoto tries to import triplicates

I just started using iPhoto 2011 with my iPhone 4s. Anyway, everytime I plug my phone in my MacBrook Pro and try and import images.... iPhoto tries to import 3 of everything.

Currently on my iPhone I have only five images. That it... no more - no less, none in extra albums etc... simply 5 images. However, iPhoto is trying to import 15 images (three of each of the five).

Is there something I can do to prevent this?