In Israel, 7.64 million citizens speak and hold a working command of the Hebrew language. For about half of those people Hebrew is their mother tongue, but when it comes to the more intricate aspects of knowing a language the figures are less encouraging, especially in regards to finding a job. According to "Selected Data from the 2011 Social Survey on Mastery of the Hebrew Language and Usage of Languages," published by the Central Bureau of Statistics, there are 1.44 million Arabic speakers in Israel, 1.2 million Russian speakers, and some 160,000 people know Yiddish. There are no less than 36 spoken languages in Israel. Meanwhile, second-generation and third-generation immigrants displayed an impressive grasp of foreign languages. According to the data, among those who immigrated to Israel from the former Soviet Union in the early 1990s, about half (51 percent) speak Hebrew "well" or "very well," while 42% read Hebrew "well" or "very well." Nineteen percent read Hebrew remedially, while 39% "barely" read Hebrew or not at all. Not surprisingly, employment figures rise in correspondence to the level of Hebrew one has: Eighty percent of 25-54 year-olds who have a very good grasp of the language are employed, as opposed to just 50% of those who have difficulty reading Hebrew and 30% of those who struggle to speak it. Twenty-seven percent of the population struggle to fill out forms or write official letters in Hebrew.