Year

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

Total

Number

27

44

46

57

69

56

99

119

92

124

136

869

Ratio

3.11%

5.06%

5.29%

6.56%

7.94%

6.44%

11.39%

13.70%

10.59%

14.27%

15.65%

100%