Created with Raphaƫl 2.1.2
572
200
400
600
800
1,000
1,200
1,400
1,600
1,800
66
1982
68
1983
68
1984
81
1985
123
1986
145
1987
203
1988
291
1989
240
1990
471
1991
562
1992
635
1993
486
1994
416
1995
354
1996
418
1997
535
1998
573
1999
531
2000
463
2001
555
2002
504
2003
515
2004
515
2005
509
2006
967
2007
2008
2009
2010
2011
648
2012
635
2013
572
2014
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