Ruffle Sunhat

I've just finished knitting this ruffled baby sunhat for my little girl who is due in 3 weeks.  I used sirdar snuggly baby crofter in shade 151.  It was a very quick knit, has taken probably 3 hours.  I used 4mm circular needles as I am a fairly tight knitter. So would recommend people who generally knit to correct gauge use 3.75mm needles.  The pattern uses multiples of 7 stitches to create the ruffles, so to make a bigger size, add a multiple of 7 stitches
Pattern
Cast on 224 sts and join in the round
Row 1 & 2: Knit
Row 3: *K5, ssk, K5, k2tog rep from * to end
Row 4: Knit
Row 5: *K5, ssk, (sl1k k2tog, psso) k2tog rep from * to end
Row 6: Knit
Row 7: *K5, K3tog rep from * to end
Row 8: Knit
Row 9: *K4, k2tog rep from *to end
Row 10: Knit
Repeat row 10 until hat measures 3 inches from end of brim decreases (row9)
Shape Crown
Row 1: *K7, k2tog rep from * rep to end
Row 2: Knit
Row 3: *K6, k2tog rep from *  rep to end
Row 4: Knit
Row 5: *K5, k2tog rep from *rep to end
Row 6: Knit
Row 7: *K4, k2tog rep from * rep to end
Row 8: Knit
Row 9: *K3, k2tog rep from * rep to end
Row 10: Knit
Row 11: *K2, k2tog rep from * rep to end
Row 12: Knit
Row 13: *K1, k2tog rep from *rep to end
Row 14: Knit
Row 15:*k2tog rep from * to end (9sts)
pull yarn through remaining sts and tie off.