Our bargaining unit includes: permanent members, long-term and day casual members, and members on leave. The figures below are based on the total membership.

• 1981-1982: 17
• 1982-1983: 17
• 1984-1985: 117
• 1988-1989: 425
• 1989-1990: 581
• 1990-1991: 518 (elimination of JK)
• 1992-1993: 585
• 2001-2002: 675
• 2002-2003: 720
• 2003-2004: 838
• 2004-2005: 944 (Sept.) – 1103 (June)
• 2005-2006: 1411
• 2006-2007: 1450
• 2007-2008: 1450
• 2008-2009: 1550 (Sept.) – 1620 (June)
• 2010-2011: 1740 (June) (rollout of FDK)
• 2012-2013: 2600 (June)
• 2013-2014: 3200 (June)
• 2014-2015: 3400 (June)
• 2015-2016: 3561 (June)
• 2016-2017: 3765 (May 2017)