year  1st venue    2nd venue  3rd venue   4th venue 5th venue
0  2007  sheffield  mexico city    nanjing          na        na
1  2008    tijuana    sheffield    nanjing          na        na
2  2009       doha    changzhou  sheffield     tijuana        na
3  2010    qingdao     veracruz   veracruz          na        na
4  2011     moscow      beijing  sheffield  guanajuato        na
5  2012      dubai      beijing     moscow     tijuana        na

Table as JSON:
{"year":{"0":2007,"1":2008,"2":2009,"3":2010,"4":2011,"5":2012},"1st venue":{"0":"sheffield","1":"tijuana","2":"doha","3":"qingdao","4":"moscow","5":"dubai"},"2nd venue":{"0":"mexico city","1":"sheffield","2":"changzhou","3":"veracruz","4":"beijing","5":"beijing"},"3rd venue":{"0":"nanjing","1":"nanjing","2":"sheffield","3":"veracruz","4":"sheffield","5":"moscow"},"4th venue":{"0":"na","1":"na","2":"tijuana","3":"na","4":"guanajuato","5":"tijuana"},"5th venue":{"0":"na","1":"na","2":"na","3":"na","4":"na","5":"na"}}