Possession_Island 12Z pressure
1993   988.1   970.8   978.5   976.4   975.6   968.0   967.4   970.9   969.8   966.6   973.2   976.3
1994   978.6   974.8   970.9   978.0   978.8   992.6   981.7   969.6   981.7   970.4   976.1   973.1
1995   974.0   975.1   981.7   976.7   973.2   983.2   992.2   979.7   970.2   970.1   972.4   971.6
1996   979.3   981.8   976.1   973.4   977.7   973.2   977.7   979.3   984.3   966.2       -       -
1997   981.7   979.0   970.4   979.8   968.5   978.0   973.5   970.7   973.1   968.3       -       -
1998       -   972.7   974.0   969.6   975.1   971.2   974.4   970.2   979.0   974.2       -       -
1999   977.9   978.9   976.3   971.8   972.9   988.2   972.3   977.8   975.4   961.0       -       -
2000   971.8   975.0   975.5   974.9   975.8   980.1   976.8   977.5   982.4   969.0       -       -
2001   983.9   981.9   977.9   971.8   979.9   975.2   981.0   976.0   974.8   966.4   970.2   970.7
2002   976.9   971.6   982.0   974.2   982.5   984.9   983.5   973.0   978.0   982.0   975.7   972.1
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -       -       -       -       -       -       -       -       -       -       -
2006       -       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -   978.0   981.6   979.7   989.2   973.7   971.6   974.8   975.9   970.8
2008   972.3   972.2   977.4   979.3   979.2   969.0   975.1       -   969.2   967.3       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -