|
10/2006 |
5,276 |
|
4/2006 |
5,265 |
|
10/2005 |
5,263 |
|
4/2005 |
5,260 |
|
10/2004 |
5,256 |
|
4/2004 |
5,252 |
|
10/2003 |
5,247 |
|
4/2003 |
5,240 |
|
10/2002 |
5,234 |
|
4/2002 |
5,226 |
|
10/2001 |
5,217 |
|
4/2001 |
5,208 |
|
10/2000 |
5,197 |
|
4/2000 |
5,190 |
|
10/1999 |
5,184 |
|
4/1999 |
5,179 |
|
10/1998 |
5,169 |
|
4/1998 |
5,162 |
|
10/1997 |
5,154 |
|
4/1997 |
5,146 |
|
10 / 1996 |
5,137 |
All
levels are shown as feet above sea-level.