Drescher 12Z pressure
1992       -       -       -       -       -       -       -       -       -       -       -   983.2
1993   993.4       -       -       -       -       -       -       -       -       -       -   981.6
1994   985.0       -       -       -       -       -       -       -       -       -       -   978.7
1995       -   979.2   980.8   984.4   979.0   985.6   992.6   982.0   979.6   983.2   979.7   977.6
1996   985.8   985.3   978.5   982.4   980.9   987.4   978.6   984.8   989.2   975.5   983.0   985.5
1997   988.0   987.7   975.5   985.7   978.0   987.9   980.2   980.6   978.1   981.7   987.3   989.0
1998   983.9   979.9   980.0   974.7   976.0   978.8   977.0   977.9   980.5   979.9   975.4   978.9
1999   984.7   984.1   984.2   976.6   980.7   993.5   981.6   974.9   979.8   970.0   980.0   974.1
2000   977.8   983.1   985.5   984.9   980.9   984.1   989.7   981.0   985.6   978.9   983.9   993.4
2001       -       -       -       -       -       -       -       -       -       -       -       -
2002       -       -       -       -       -       -       -       -       -       -       -       -
2003       -       -       -       -       -   991.2       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -       -       -       -       -       -       -       -       -       -       -
2006       -       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -       -       -       -       -       -       -       -       -       -
2008       -       -       -       -       -       -       -       -       -       -       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -