Zhongshan 00Z station_level_pressure
1992       -       -       -       -       -       -       -   979.5       -   984.8       -       -
1993       -   979.9   986.1       -   981.2   984.1   978.6   976.6   979.0   977.7   983.2   984.7
1994   988.0       -       -       -       -       -   987.5       -       -       -   990.8       -
1995       -   987.3       -   987.1       -   988.9       -       -       -       -       -       -
1996       -       -       -       -       -       -       -       -       -       -       -       -
1997   987.5   984.7       -   991.0       -       -       -       -   980.9   983.4       -   990.7
1998       -       -   982.5       -   983.7   981.8   984.5   977.1   986.3   983.9       -       -
1999       -       -       -       -       -       -       -       -       -       -       -       -
2000       -       -       -       -       -       -       -   981.8       -       -       -       -
2001       -       -       -       -   985.7   983.9       -   980.6       -   977.2       -       -
2002       -   977.7       -       -       -       -   987.8   978.9   985.5   992.3   984.5       -
2003       -   986.9       -   980.5   987.4       -   985.9       -       -       -       -       -
2004       -       -       -       -       -       -   979.0   978.4   977.1       -       -       -
2005   987.1       -       -       -       -       -       -       -       -       -       -   995.7
2006   986.7   986.5   983.1   984.3       -       -   974.9   993.2   985.0       -   979.6   983.1
2007       -   982.8       -       -       -       -       -   983.0   984.1       -   984.0   982.0
2008   984.0   980.6   985.7   988.0   989.2   984.1   986.5   980.5   982.0   975.9   979.7       -
2009   985.2       -       -       -       -       -       -       -       -       -       -       -