Marion 12Z station_level_pressure
2003   993.9  1005.3  1007.7  1011.0       -  1005.3  1003.3       -       -       -   999.4   999.2
2004       -  1007.5       -       -       -  1007.9  1001.4       -  1003.8       -       -  1002.5
2005  1002.0  1006.8  1007.1  1011.6  1004.0       -  1004.2  1001.3       -       -  1005.0       -
2006  1001.9  1001.6  1003.7  1001.8       -  1005.4  1007.6  1008.5       -       -  1002.3       -
2007  1001.6  1005.9       -  1006.0       -       -   998.7  1004.7   999.8  1007.1   998.6  1008.1
2008  1002.6  1006.0  1008.7       -  1006.3  1014.3       -  1005.0  1001.5  1004.6  1003.1  1001.8
2009  1004.7       -       -       -       -       -       -       -       -       -       -       -