|Tour|Official title|Venue|City|Date Start|Date Finish|Prize money USD|Report|
|---|---|---|---|---|---|---|---|
|1|Korea Open Super Series Premier|Seoul National University Gymnasium|Seoul|January 8|January 13|1,000,000|Report|
|2|Malaysia Open Super Series|Bukit Kiara Sports Complex|Kuala Lumpur|January 15|January 20|400,000|Report|
|3|All England Super Series Premier|National Indoor Arena|Birmingham|March 5|March 10|400,000|Report|
|4|India Super Series|Siri Fort Indoor Stadium|New Delhi|April 23|April 28|200,000|Report|
|5|Indonesia Super Series Premier|Istora Senayan|Jakarta|June 11|June 16|700,000|Report|
|6|Singapore Super Series|Singapore Indoor Stadium|Singapore|June 18|June 23|200,000|Report|
|7|China Masters Super Series|Olympic Sports Centre Xincheng Gymnasium|Changzhou|September 10|September 15|250,000|Report|
|8|Japan Super Series|Yoyogi National Gymnasium|Tokyo|September 17|September 22|200,000|Report|
|9|Denmark Super Series Premier|Odense Idrætspark|Odense|October 15|October 20|400,000|Report|
|10|French Super Series|Stade Pierre de Coubertin|Paris|October 22|October 27|200,000|Report|
|11|China Open Super Series Premier|Yuanshen Sports Centre Stadium|Shanghai|November 12|November 17|350,000|Report|
|12|Hong Kong Super Series|Hong Kong Coliseum|Kowloon|November 19|November 24|250,000|Report|
|13|Super Series Masters Finals|Kuala Lumpur Badminton Stadium|Kuala Lumpur|December 11|December 15|500,000|Report|

Question: how many tours took place during january?
Answer: 2