2009

2010

2011

2012

2013

2014

2015

2016

2017

Green

10,140

9233

12,921

16,539

13,608

12,691

15,172

11,895

9895

Amber

3999

1740

3136

1928

3160

4252

3537

2514

1809

Red

20,628

19,804

16,758

20,706

20,005

22,421

23,246

19,156

15,281

Total

34,67

30,777

32,815

39,173

36,773

39,364

41,955

33,565

26,985