Table:
text: Belgian National Badminton Championships
National Junior Champions
National Junior Champions
Year_ Mens_Singles Womens_Singles Men_Doubles Womens_Doubles Mixed_Doubles
2004 Gilles Laguesse Sophie Laguesse Geofrey Lamont Karel Sioncke Sabine Devooght Maite Lamont Koen Verleyen Kelly Scoliers
2005 Yuhan Tan Laurence Charneux Jente Paesen Yuhan Tan Steffie Annys Stefanie Bertels Jonathan Gillis Laurence Charneux
2006 Yuhan Tan Stefanie Bertels Jente Paesen Yuhan Tan Steffie Annys Stefanie Bertels Jonathan Gillis Laurence Charneux
2007 Damien Maquet Lianne Tan Laurent Cuccu Nicolas Cuccu Jelske Snoeck Janne Elst Damien Maquet Severine Corvilain

Question: What is the number of men's doubles matches for the 2007 national junior champions of the Belgian National Badminton Championships?