Under Pedersens tenure as leader , the organization experienced a sharp upsurge in membership numbers , more than doubling in size from since 2003 .
Under Pedersens tenure as leader , the organization established itself as Norway 's by far largest youth organization .
Under Pedersens tenure as leader , the organization experienced a sharp upsurge in membership numbers , more than doubling in size from since 2003 , and established itself as Norway 's by far largest youth organization .