Between 1985 and 2015, Israel sent 24 delegations of IDF search and rescue unit to 22 countries. In Haiti, immediately following the 2010 earthquake, Israel was the first country to set up a field hospital capable of performing surgical operations. Israel sent over 200 medical doctors and personnel to start treating injured Haitians at the scene. At the conclusion of its humanitarian mission 11 days later, the Israeli delegation had treated more than 1,110 patients, conducted 319 successful surgeries, delivered 16 births and rescued or assisted in the rescue of four individuals. Despite radiation concerns, Israel was one of the first countries to send a medical delegation to Japan following the earthquake and tsunami disaster. Israel dispatched a medical team to the tsunami-stricken city of Kurihara in 2011. A medical clinic run by an IDF team of some 50 members featured pediatric, surgical, maternity and gynecological, and otolaryngology wards, together with an optometry department, a laboratory, a pharmacy and an intensive care unit. After treating 200 patients in two weeks, the departing emergency team donated its equipment to the Japanese.

How many delegations of IDF search and rescue units between 1985 and 2015?