1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

27,849

29,321

34,221

37,854

42,359

45,160

48,237

50,566

51,101

59,601

61,857

64,640

65,318

72,103

69,330

70,888

79,355

90,469

92,952

106,096

116,118

5,776

6,322

9,008

12,376

14,229

18,948

22,715

25,682

28,297

33,305

36,601

40,143

41,631

45,512

47,852

50,199

55,487

62,791

71,092

77,451

80,393

13,951

14,375

15,972

15,750

16,305

17,362

18,178

18,330

18,442

19,415

19,315

20,098

20,509

20,838

20,810

20,731

21,519

23,568

20,734

25,423

25,697

5,108

5,520

6,571

6,985

7,555

8,598

8,819

7,250

7,398

7,609

7,770

8,024

8,400

7,628

7,126

7,068

7,424

7,624

6,776

6,490

7,494

 24,835

26,217

31,551

35,111

38,089

44,908

49,712

51,262

54,137

60,329

63,686

68,265

70,540

73,978

75,788

77,998

84,430

93,983

98,602

109,364

113,584