Relay_Station pressure
1995       -   641.9   638.2   636.9   629.6   633.8   643.4   630.2   621.2   634.3   639.6   642.4
1996   646.2   646.1   635.2   634.3   629.0   635.3   638.1   638.2   642.6   630.2   644.1   647.5
1997   645.6   642.5   633.9   637.3   630.2   640.2   626.2   628.9   629.3   632.4   647.6   648.2
1998   643.2   640.1   636.8   623.8   635.7   633.6   630.5   629.1   630.7   630.7   636.3   640.0
1999   646.3   643.1   636.9   630.1   630.7   644.5   630.5   632.9   633.8   625.9   636.3   636.9
2000   639.8   637.9   634.3   636.5   631.2   637.3   632.4   634.8   635.6   627.7   644.3   649.4
2001   645.8   643.9   638.6   632.3   638.3   638.7   635.5   627.5   627.9   630.9   637.4   641.5
2002   645.4   637.5   643.3   639.2   646.8   638.2   638.8   629.4   633.1   642.6   637.2   640.9
2003       -       -       -       -       -   642.2       -       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -       -       -   635.1       -   642.7   635.1   632.9       -       -       -       -
2006       -       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -       -       -       -       -       -       -       -       -       -
2008       -       -       -       -       -       -       -       -       -       -       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -