Question:  "Bye Bye I Love You" was the Luxembourgish entry in the Eurovision Song Contest, in which year, the song is notable in the history of the Contest; it was the very first entry composed by Eurovision veteran Ralph Siegel, who would go on write 19 ESC entries throughout the 1970s, 1980s, 1990s and 2000s, 1 for Switzerland, that participated in the Eurovision Song Contest 58 times?
Sentence (from "Switzerland in the Eurovision Song Contest"): Switzerland has participated in the Eurovision Song Contest 58 times since making its debut at the first contest in 1956 , missing only four contests, in 1995, 1999, 2001 and 2003.
Relevant evidence: Yes