Date of Mass Minimum B_a [m w.e.] B_Cum [m w.e.] 1966/09/18 -0.2 -0.2 1967/09/05 0.3 0.1 1968/09/25 -0.7 -0.6 1969/09/26 0.4 -0.3 1970/09/18 1.9 1.6 1971/09/28 0.6 2.2 1972/09/25 -0.8 1.4 1973/09/05 0.7 2.2 1974/09/30 -1 1.1 1975/09/27 0.1 1.2 1976/09/06 -0.6 0.6 1977/09/27 1.9 2.5 1978/09/29 0.9 3.4 1979/09/23 -1 2.3 1980/10/04 2.2 4.5 1981/09/15 3.7 8.2 1982/09/28 0.2 8.3 1983/10/06 0 8.3 1984/09/29 0.1 8.4 1985/09/17 0.8 9.2 1986/10/03 0.3 9.5 1987/09/11 1.8 11.3 1988/09/14 1.5 12.8 1989/09/30 -1.1 11.7 1990/09/21 -1.9 9.8 1991/09/23 0 9.7 1992/09/18 0.2 9.9 1993/09/19 -0.3 9.7 1994/09/16 0 9.6 1995/09/27 -0.1 9.5 1996/09/15 -1 8.5 1997/10/01 -1.5 7 1998/10/07 1.2 8.3 1999/09/13 -0.4 7.9 2000/09/12 1 8.9 2001/09/19 1 9.9 2002/09/11 -0.1 9.7 2003/10/06 0.1 9.8 2004/09/19 -1.9 7.9 2005/09/26 -1.3 6.7 2006/09/20 -0.3 6.3 2007/10/30 -0.5 5.9 2008/10/04 1.6 7.5 2009/10/21 -1.5 6 2010/09/30 0.5 6.5 2011/09/03 -1 5.4 2012/09/22 0.9 6.3 2013/09/17 -1.5 4.8 2014/10/02 -1.5 3.3 2015/09/19 -0.7 2.7