Possession_Island 18Z pressure
1993   987.7   970.8   978.8   975.5   975.6   967.7   967.6   970.5   969.8   966.7   973.0   976.2
1994   978.6   974.7   971.3   977.5   978.8   992.5   981.8   969.5   981.8   970.6   976.0   973.1
1995   973.8   974.3   981.4   976.4   972.6   982.6   992.4   979.5   969.8   970.2   971.9   971.0
1996   979.0   981.6   976.3   973.1   977.4   972.9   978.1   979.2   983.9   965.9       -       -
1997   981.7   978.7   970.2   979.5   967.9   977.1   973.2   970.4   972.4   968.2       -       -
1998       -   972.5   973.8   969.4   974.9   971.3   974.2   970.1   978.7   974.1       -       -
1999   977.8   978.8   975.9   971.5   972.9   987.6   972.0   977.7   975.1   960.6       -       -
2000   971.9   974.4   975.6   974.7   975.5   979.7   977.2   977.4   982.0   969.1       -       -
2001   983.8   981.5   978.0   971.6   980.0   975.4   981.1   976.4   974.6   966.4   970.3   970.7
2002   976.9   971.3   982.3   973.4   982.7   984.6   983.2   973.1   977.9   982.2   975.6   972.2
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -       -       -       -       -       -       -       -       -       -       -
2006       -       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -   977.6   981.2   979.9   988.9       -   972.2   975.0   975.8   970.7
2008   971.9   972.0   977.3   979.0   978.9   969.1   974.9       -   968.6   967.5       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -