|
|
|
|
|
|
| 2006 |
|
|
more than 20,000 |
|
| 2005 |
|
|
16,500 |
|
| 2004 |
|
|
14,400 |
|
| 2003 |
|
|
12,800 |
|
| 2002 |
|
|
10,118 |
|
| 2001 |
|
|
7,700 |
|
| 2000 |
|
|
7,300 |
|
| 1999 |
|
|
6,342 |
|
| 1998 |
|
|
5,494 |
|
| 1997 |
|
|
5,372 |
|
| 1996 |
|
|
4,646 |
|
| 1995 |
|
|
4,046 |
|
| 1994 |
|
|
3,352 |
|
| 1993 |
|
|
3,065 |
|
| 1992 |
|
|
2,335 |
| |
|
|
|
|
|
|
|
| 1991 |
|
|
1,723 |
|
| 1990 |
|
|
1,084 |
|
| 1989 |
|
|
667 |
|
| 1988 |
|
|
479 |
|
| 1987 |
|
|
344 |
|
| 1986 |
|
|
253 |
|
| 1985 |
|
|
196 |
|
| 1984 |
|
|
178 |
|
| 1983 |
|
|
124 |
|
| 1982 |
|
|
97 |
|
| 1981 |
|
|
36 |
|
| 1980 |
|
|
3 |
| |
|
|
|
|
|
|
| 2006 |
|
|
$3.2 billion |
|
| 2005 |
|
|
$2,314 million |
|
| 2004 |
|
|
$2,028 million |
|
| 2003 |
|
|
$1,655.4 million |
|
| 2002 |
|
|
$1,116.6 million |
|
| 2001 |
|
|
$865.0 million |
|
| 2000 |
|
|
$845.0 million |
| |
|
|
|
|
|
|
|
| 1999 |
|
|
$822.8 million |
|
| 1998 |
|
|
$663.3 million |
|
| 1997 |
|
|
$630.8 million |
|
| 1996 |
|
|
$528.3 million |
|
| 1995 |
|
|
$451.7 million |
|
| 1994 |
|
|
$323.6 million |
|
| 1993 |
|
|
$255.3 million |
| |