strikes
- Feb- 2019 -21 February
- May- 2018 -10 May
- Sep- 2017 -27 September
- Apr- 2017 -29 April
- Feb- 2017 -8 February
- Dec- 2016 -23 December
- Nov- 2016 -14 November
- Oct- 2016 -9 October
- 5 October
- Sep- 2016 -29 September