Shown with a cast-on count of 13 stitches.  

• Row 1 (RS): K2, yo, p2tog, k3, k2tog, yo, k2tog, yo, k1, yo, k1 (14 sts).
• Rows 2 and 10: K10, yo, p2tog, k2.
• Row 3: K2, yo, p2tog, k2, k2tog, yo, k2tog, yo, k3, yo, k1 (15 sts).
• Rows 4 and 8: K11, yo, p2tog, k2.
• Row 5: K2, yo, p2tog, k1, k2tog, yo, k2tog, yo, k2tog, yo, k3, yo, k1 (16 sts).
• Row 6: K12, yo, p2tog, k2.
• Row 7: K2, yo, p2tog, k3, yo, k2tog, yo, k2tog, k1, k2tog, yo, k2tog (15 sts).
• Row 9: K2, yo, p2tog, k4, yo, k2tog, yo, k3tog, yo, k2tog (14 sts).
• Row 11: K2, yo, p2tog, k5, yo, k3tog, yo, k2tog (13 sts).
• Row 12: K9, yo, p2tog, k2.