Click here to report volumes in (Cubic Meters) or view data graphically.
| Year | Quantity Disposed |
| 1976 |
67,610,213 |
| 1977 |
49,413,300 |
| 1978 |
53,031,300 |
| 1979 |
72,788,098 |
| 1980 |
45,919,600 |
| 1981 |
55,518,800 |
| 1982 |
37,563,000 |
| 1983 |
59,470,000 |
| 1984 |
65,379,330 |
| 1985 |
66,977,500 |
| 1986 |
56,364,650 |
| 1987 |
76,943,500 |
| 1988 |
62,108,600 |
| 1989 |
73,531,107 |
| 1990 |
56,210,900 |
| 1991 |
53,155,450 |
| 1992 |
67,898,700 |
| 1993 |
71,949,200 |
| 1994 |
52,620,300 |
| 1995 |
74,320,388 |
| 1996 |
54,045,474 |
| 1997 |
70,224,082 |
| 1998 |
73,212,700 |
| 1999 |
59,418,513 |
| 2000 |
76,805,800 |
| 2001 |
74,913,400 |
| 2002 |
104,754,200 |
| 2003 |
65,821,668 |
| 2004 |
63,911,100 |
| 2005 |
47,594,600 |
| 2006 |
48,594,730 |
| 2007 |
40,658,100 |
| 2008 |
39,753,893 |
| 2009 |
61,196,323 |
| 2010 |
41,915,450 |