The Karoshi Hotline received the highest number of calls when it was first established in 1988. From 1988 to 1990, there were a total number of 1806 calls received. From 1990 to 2007, the number of calls received per year was lower, but has not shown a clear trend of further decrease.
the karoshi hotline received the highest number of calls when it was first established in 1988 from 1988 to 1990 there were a total number of 1806 calls received from 1990 to 2007 the number of calls received per year was lower but has not shown a clear trend of further decrease