The way I read it is that you'll work stitches 1-12 5 times and on the final repeat go to stitch 15 for your size. Other sizes may have you finish later in the chart.
Placing the dot pattern is the color part. I think they're just telling you what you're doing now.
Make sure that when you do the decreases at the edges you take that into account when you follow the chart.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry