| 1950 |
| 1955 |
| 1960 |
| 1965 |
| 1970 |
| 1975 |
| 1980 |
| 1985 |
| 1991 |
| 1992 |
| 1993 |
| 1994 |
| 1995 |
| 1996 |
| 1997 |
| 1998 |
| 1999 |
| 2000 |
| 2001 |
|
|
| 40,466 |
| 39,664 |
| 29,499 |
| 46,176 |
| 80,314 |
| 51,649 |
| 90,870 |
| 154,650 |
| 183,567 |
| 177,688 |
| 171,532 |
| 151,565 |
| 162,626 |
| 154,884 |
| 155,356 |
| 158,184 |
| 158,874 |
150,317 |
140,716 |
|
| 10.7 |
| 37.5 |
| 70.6 |
| 209.1 |
| 701.1 |
| 1,512.1 |
| 3,031.2 |
| 6,246.3 |
| 17,841.7 |
| 18,820.1 |
| 16,754.5 |
| 14,545.4 |
| 15,299.8 |
| 14,077.4 |
| 13,863.5 |
| 13,246.8 |
| 13,269.9 |
12,340.9 |
11,703.5 |
|
| 40,466 |
| 39,664 |
| 23,293 |
| 36,970 |
| 67,248 |
| 42,858 |
| 78,931 |
| 134,475 |
| 154,888 |
| 156,467 |
| 150,851 |
| 130,298 |
| 143,937 |
| 133,832 |
| 134,324 |
| 139,581 |
| 136,271 |
128,940 |
120,657 |
|
| 2.8 |
| 3.4 |
| 10.0 |
| 41.0 |
| 134.2 |
| 197.3 |
| 439.9 |
| 926.1 |
| 3,965.1 |
| 3,400.9 |
| 2,776.8 |
| 2,105.8 |
| 2,173.0 |
| 1,937.6 |
| 1,933.9 |
| 1,682.6 |
| 1,687.6 |
1,521.3 |
1,477.1 |
|
| N/A |
| 30,859 |
| 9,183 |
| 13,407 |
| 24,454 |
| 14,593 |
| 26,797 |
| 48,111 |
| 56,554 |
| 54,449 |
| 52,877 |
| 45,335 |
| 50,729 |
| 48,476 |
| 48,605 |
| 49,526 |
| 50,731 |
48,463 |
46,012 |
|
| 904,876 |
| 693,523 |
| 706,599 |
| 700,438 |
| 712,962 |
| 702,275 |
| 722,801 |
| 752,283 |
| 829,797 |
| 856,643 |
| 878,532 |
| 875,933 |
| 922,139 |
| 896,211 |
| 913,402 |
| 936,484 |
| 982,031 |
961,653 |
970,331 |
|
| - |
| 4.4 |
| 1.3 |
| 1.9 |
| 3.4 |
| 2.1 |
| 3.7 |
| 6.4 |
| 6.8 |
| 6.4 |
| 6.0 |
| 5.2 |
| 5.5 |
| 5.4 |
| 5.3 |
| 5.3 |
| 5.2 |
5.0 |
4.7 |
|
