Halley 06Z station_level_pressure
2001   987.1       -       -   979.5   990.0   982.0   984.9   976.6   980.1   970.5       -   977.5
2002       -   979.4   987.9   985.1   990.7       -       -   979.5   984.1   988.5   985.3   981.9
2003       -   987.4       -   979.3   983.0   991.3   984.8       -       -   983.4       -   991.6
2004   984.4       -       -       -       -       -       -       -   982.6       -       -       -
2005       -   979.2       -   978.5   986.8   991.1   984.9   981.8   984.7   982.8   985.8   995.3
2006       -       -   982.9   982.2       -       -   979.6   986.9   984.1   978.0   978.8   985.5
2007   987.7       -   985.1   991.5       -       -   994.3   982.9   989.5   981.2   983.8   977.9
2008   984.1   981.1   983.1   986.6   987.0   984.1   980.6   977.8   985.5   977.0   978.5   977.1
2009   981.6       -       -       -       -       -       -       -       -       -       -       -