Zhongshan 06Z station_level_pressure
1992       -       -       -       -       -       -       -   979.4       -       -       -       -
1993       -       -   985.2       -   981.1   983.9   978.5   976.8   979.8   977.7   982.8   984.6
1994   987.4       -       -       -       -       -   987.6       -       -       -   990.6       -
1995       -   986.6       -       -       -   989.1       -   983.3       -       -   985.5   983.2
1996       -       -       -       -       -       -       -       -       -       -       -       -
1997       -       -       -   990.5       -       -       -       -       -       -       -   990.7
1998       -       -   982.2       -       -   982.0   984.8   977.4   986.5   983.4   977.5       -
1999   987.0   988.1   989.2       -       -   995.8       -       -   985.7       -   979.9   977.1
2000   979.4       -       -       -       -       -       -   981.2       -       -       -       -
2001       -       -       -       -   986.1   984.0       -   980.9       -       -       -       -
2002   981.6   977.4       -       -       -       -   987.6   978.7   985.7   992.1   984.6       -
2003       -       -       -       -   987.5       -   985.8       -       -       -       -       -
2004       -       -       -       -       -       -   979.2   978.2   977.3       -       -       -
2005       -       -       -       -       -       -       -       -       -       -       -   995.5
2006   986.1   986.2   983.0   984.3       -       -   974.9   993.3   984.9       -   979.9   983.4
2007       -   982.6       -       -       -       -   995.2   983.0   983.8       -   984.0   981.9
2008   983.9   980.4   985.8   988.3   989.1   984.1   986.5   980.6   981.8   976.0   979.4       -
2009   985.3       -       -       -       -       -       -       -       -       -       -       -