| YEAR | TRACKS REPORTED |
|---|---|
| 2022 | 16 |
| 2021 | 1360 |
| 2020 | 1066 |
| 2019 | 1714 |
| 2018 | 1606 |
| 2017 | 1627 |
| 2016 | 1676 |
| 2015 | 1496 |
| 2014 | 1529 |
| 2013 | 1538 |
| 2012 | 1402 |
| 2011 | 1483 |
| 2010 | 1613 |
| 2009 | 1935 |
| 2008 | 1836 |
| 2007 | 2109 |
| 2006 | 2228 |
| 2005 | 2093 |
| 2004 | 2065 |
| 2003 | 1912 |
| 2002 | 1637 |
| 2001 | 1458 |
| 2000 | 1587 |
| 1999 | 1364 |
| 1998 | 1493 |
| 1997 | 1207 |
| 1996 | 1352 |
| 1995 | 1239 |
| 1994 | 1099 |
| 1993 | 1034 |
| 1992 | 933 |
| 1991 | 1015 |
| 1990 | 1020 |
| 1989 | 973 |
| 1988 | 902 |
| 1987 | 829 |
| 1986 | 714 |
| 1985 | 743 |
| 1984 | 692 |
| 1983 | 767 |
| 1982 | 707 |
| 1981 | 655 |
| 1980 | 605 |