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)