|
10/2006 |
5,287 |
|
4/2006 |
5,283 |
|
10/2005 |
5,281 |
|
4/2005 |
5,278 |
|
10/2004 |
5,274 |
|
4/2004 |
5,270 |
|
10/2003 |
5,264 |
|
4/2003 |
5,258 |
|
10/2002 |
5,252 |
|
4/2002 |
5,245 |
|
10/2001 |
5,239 |
|
4/2001 |
5,228 |
|
10/2000 |
5,219 |
|
4/2000 |
5,213 |
|
10/1999 |
5,208 |
|
4/1999 |
5,202 |
|
10/1998 |
5,193 |
|
4/1998 |
5,187 |
|
10/1997 |
5,178 |
|
4/1997 |
5,168 |
|
10/1996 |
5,156 |
All levels are shown as feet above sea-level.