Table showing the number of strikes and workers on strike from January to May for each year from 2021 to 2023. The highest number of strikes occurred in 2022, with 154 strikes, and the lowest number of strikes occurred in 2021, with 80 strikes. The highest number of workers on strike occurred in 2023, with 119,000 workers on strike, and the highest number of workers involved occurred in 2021, with 20,000 workers on strike.