Table:
text: New Zealand Open (badminton)
Previous winners
Previous winners
Year_ Men_s_singles Women_s_singles Men_s_doubles Women_s_doubles Mixed_doubles
2009 Chan Yan Kit Sayaka Sato Ruseph Kumar Sanave Thomas Annisa Wahyuni Anneke Feinya Agustin Frans Kurniawan Pia Zebadiah Bernadet
2013 Riichi Takeshita Deng Xuan Angga Pratama Rian Agung Saputro Ou Dongni Tang Yuanting Praveen Jordan Vita Marissa

Question: When did Deng Xuan first win the women's singles at the New Zealand Open (badminton)?