San_Martin station_level_pressure
1996   987.6   985.1   981.1   993.8   979.8   991.4   984.9   987.8   987.7   978.5   973.8       -
1997   983.9   990.4   985.4   983.3   995.5  1001.7   989.8   982.1   993.0   988.4   995.8   997.5
1998   984.0   992.2   987.2   983.7   999.5   991.9   974.3   980.8   984.4   976.5       -   980.3
1999   984.2   980.0   988.1   979.1   984.8   994.1   984.6   987.9   989.6   979.8   980.7   977.9
2000   977.1   990.8   999.1   981.5   991.7   993.0  1001.0   990.5   999.4   987.3   992.7   989.4
2001   988.7   989.4   984.5   984.4   992.9   991.0   996.5   972.9   984.8   972.6   973.9   975.7
2002       -   979.6   991.9       -       -       -       -       -       -       -       -       -
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -       -   982.1       -       -       -       -       -       -       -       -
2006   990.6   994.0   975.9   988.5       -       -       -  1000.7   988.4       -       -   983.7
2007   991.5   987.8   988.4   990.9   996.4   992.2   995.6   982.7   990.3   981.9   989.7   981.6
2008   984.8   985.0       -   984.3       -   988.8   994.2   986.6   991.1   980.3   979.1       -
2009   982.1       -       -       -       -       -       -       -       -       -       -       -