In Finland, the "Personal Identity Code" (Finnish: "henkilötunnus" (abbreviated as "HETU"), Swedish: "personbeteckning"), also known as "Personal Identification Number", was introduced in 1964 and it is used for identifying the citizens in government and many corporate and other transactions. It consists of eleven characters of the form codice_1, where codice_2 is the day, month and year of birth, codice_3 the century sign, codice_4 the individual number and codice_5 the control character (checksum). The sign for the century is either codice_6 (1800–1899), codice_7 (1900–1999), or codice_8 (2000–2099). The individual number codice_4 distinguishes persons with the same date of birth from each other and it is odd for males and even for females and for people born in Finland its range is 002–899. Numbers 900–999 are used for temporary personal identification, for example in hospitals, when an official ID is not known or has not yet been given to a child born. Temporary IDs are not logged in the Finnish Population Information System.