Mount_Siple 18Z pressure
1992       -       -       -   953.2       -   967.2       -   952.9   943.1   946.5       -   957.4
1993       -       -       -   952.2   952.1   958.4   943.2   949.3   942.2   947.4   949.8       -
1994       -       -       -       -   961.9   308.3   963.8   939.8   957.6   953.5       -       -
1995       -       -   962.0   950.2   951.6   971.1   974.8   956.0   946.7   949.9   945.2       -
1996       -       -   950.6   947.5   951.6   956.3   947.9   957.8   954.5   941.0       -       -
1997       -       -       -   954.8   949.7   962.0   956.4   947.2   947.1       -       -       -
1998       -       -   953.7   943.6   961.8   946.8   947.6   940.1   952.4   947.7   943.1       -
1999       -   955.2   950.8   950.7   941.3   966.2   953.5   951.4   956.5   935.4   940.0       -
2000       -       -   955.0   953.5   952.4   956.1   950.6   953.1   958.9   946.8       -       -
2001       -       -   954.8   951.9   950.6   951.8   962.1   948.0   939.4   939.3   945.2       -
2002       -   947.0   968.0   946.9   974.5   971.1   954.9   956.9   956.3   968.9   960.8       -
2003       -       -       -       -       -       -       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -   952.7       -       -       -   954.3   947.2       -       -   953.0       -
2006       -       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -       -       -       -       -       -       -       -       -       -
2008       -       -       -       -       -       -       -       -       -       -       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -