Linda 18Z pressure
1991       -   989.3   983.6   987.5       -       -       -       -       -       -   984.7   995.0
1992   987.9   995.5   986.2       -       -       -       -       -       -       -       -       -
1993       -   978.7   986.4   981.5       -       -   974.1       -       -       -       -       -
1994       -   984.5   981.0       -       -       -       -       -       -       -       -       -
1995   981.4   982.6   993.1   985.7   982.6   990.6  1003.5   988.2   979.3   982.1   978.9   977.4
1996   986.1   990.5   985.4   978.5   986.0   982.2   983.3   987.9   989.3   972.2   986.8   985.5
1997   988.8   989.4   980.1   985.7       -       -   979.8   977.4       -       -       -       -
1998       -   962.4   963.4   956.6   963.6   959.0   961.7   960.2   969.9   961.7   955.8   963.8
1999   964.4   969.6   966.6   962.9   960.5   981.0   960.5   965.1   963.6       -       -   956.9
2000   960.4   964.6   966.1   964.4   965.4   966.8   964.3   966.0   970.4   957.9   963.3   977.9
2001   973.1   970.2   967.2   961.1   966.7   964.2   969.2   964.7   960.7   954.9   958.2   959.1
2002   965.4   959.9   972.7   962.7   974.9   976.3   970.6   960.2   968.1       -       -       -
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -   977.0   980.3   976.7   977.6   986.8   979.1   974.7   974.1   968.5   977.2   992.7
2006   983.5   982.7   982.5   984.9   974.7       -   975.9       -       -       -       -       -
2007       -       -       -       -       -       -       -       -   978.5       -       -   976.1
2008       -       -       -       -       -       -       -       -       -       -       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -