An article in 2009 described an example of the working conditions of women at ping pong shows. The employees arrived at 18:00 and left at daybreak. They stamped a time card and were penalized 5 baht (US$0.14) for every minute they were late. Each month, they received two nights of leave and, if they did not miss any additional nights, they earned a salary of 6,000 baht (US$181), supplemented by tips. In 2015 the average monthly income in Thailand was $489, according to the International Labour Organization.