Elizabeth pressure
1996       -       -   919.2       -   920.3   917.0   913.7   922.2   921.7   907.3       -       -
1997       -       -   915.4   919.1   909.7   923.2   913.4       -       -   916.2       -       -
1998       -   920.5   918.6   909.8   919.4   914.0   912.8       -       -   916.2   910.2   921.3
1999   923.4   923.6   918.9   914.2   910.8   932.5   917.7       -       -   901.7   911.1   913.9
2000   917.2   921.4   921.8   918.3   918.9   921.3   915.6   918.6   922.5   912.4   921.3   934.2
2001   930.2   926.5   919.4   916.5   918.2   918.3   923.2   913.7   910.8   907.2   914.9   917.0
2002   922.3   914.3   928.1       -       -       -       -       -       -       -       -       -
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -   915.0   917.1   913.6   916.8   925.1   915.8   909.9       -   907.0   918.2   933.6
2006   925.4       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -       -       -       -       -       -       -       -       -       -
2008       -       -       -       -       -       -       -       -       -       -       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -