11.5cm long within yard 15, 12cm long within yard 16, 12.5cm long within yard 17, 13cm long within yard 18, 13.5cm long within yard 19, 14cm long within yard 22, 14.5cm long within yard 23, 15cm long within yard 24, 15cm long within yard 25, 15.5cm long within yard 26, 16cm long within yard 27, 16.5cm long within yard 28, 17cm long within yard 29, 17.5cm long within yard 30, 18cm long
