Year |
Number of strikes |
Number of workers involved |
Working hours not worked, thousands |
1991 |
3 |
24,148 |
76.0 |
1992 |
4 |
1,010 |
33.0 |
1993 |
5 |
2,574 |
42.0 |
1994 |
4 |
31,529 |
229.0 |
1995 |
7 |
172,048 |
1,708.0 |
1996 |
8 |
4,491 |
19.0 |
1997 |
5 |
853 |
15.0 |
1998 |
7 |
1,447 |
3.0 |
1999 |
5 |
16,685 |
242.0 |
2000 |
5 |
26,978 |
1,192.0 |
2001 |
6 |
21,128 |
61.0 |
2002 |
4 |
4,573 |
9.0 |
2003 |
7 |
10,831 |
19.0 |
2004 |
8 |
6,276 |
116.0 |
2005 |
11 |
1,425 |
7.0 |
2006 |
16 |
24,665 |
52.0 |
2007 |
13 |
64,612 |
186.0 |
2008 |
8 |
8,633 |
.. |
2009 |
9 |
3,134 |
8.6 |
2010 |
7 |
3,263 |
133.1 |
2011 |
1 |
… |
… |
2012 |
3 |
1,885 |
4.6 |
2013 |
1 |
… |
… |
2014 |
– |
– |
– |
2015 |
2 |
… |
… |
2016 |
7 |
39,101 |
270.5 |
2017 |
5 |
6,706 |
30.4 |
2018 |
6 |
15,535 |
289.4 |
2019 |
12 |
20,905 |
416.3 |
2020 |
2 |
… |
… |
2021 |
4 |
2,357 |
19.3 |
2022 |
4 |
38,959 |
271.2 |
2023 |
3 |
17,779 |
91.1 |
.