Succession of power in China

Columns: Hanzi | Name | Year of birth | K | Office ( s )
李鸿忠 | Li Hongzhong | 1956 | - | Party Secretary of Tianjin | 胡春华 | Hu Chunhua | 1963 | - | Vice Premier of the State Council | 杨洁篪 | Yang Jiechi | 1950 | - | Director of the Office of Foreign Affairs | 杨晓渡 | Yang Xiaodu | 1953 | - | Director of the National Supervisory Commission | 张又侠 | Zhang Youxia | 1950 | § | Vice Chairman of the Central Military Commission | 陈希 | Chen Xi | 1953 | - | Head of the Organization Department

Example questions:
What is the year of birth of the succession of power in China leader who is an economist by trade ? | What is the year of birth of the succession of power in China leader who was the son of Chinese Communist veteran Xi Zhongxun ? | What is the year of birth of the succession of power in China leader who served as the Communist Party Secretary of Qinghai ? | What is the year of birth of the succession of power in China leader who began his political career in rural regions of his native Hebei province ?

Answers:
1955 | 1953 | 1957 | 1950