1976 - Z Scale	1977 - Z Scale	1978 - Z Scale	1979 - Z Scale
1980 - Z Scale	1981 - Z Scale		1983/84 - Z Scale
1984/85 - Z Scale	1985/86 - Z Scale	1986/87 - Z Scale	1987/88 - Z Scale
1988/1989 - Z Scale	1989/90 - ZScale	1989 - Z New Items
2005 - Z Scale	2006 - Z Scale	2009/10 - Z Scale	2010/11 - Z Scale
2011/12 - Z Scale	2012/13 - Z Scale