Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Final | Year | Final | Semi | Year | Final | Semi |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1975 | Finland | 1988 | Luxembourg | No semi-finals | 2001 | Relegated | No semi-finals |
| 1976 | United Kingdom | 1989 | Greece | No semi-finals | 2002 | Spain | No semi-finals |
| 1977 | France | 1990 | France | No semi-finals | 2003 | Relegated | No semi-finals |
| 1978 | Israel | 1991 | Spain | No semi-finals | 2004 | Serbia and Montenegro | Serbia and Montenegro |
| 1979 | Spain | 1992 | France | No semi-finals | 2005 | Serbia and Montenegro | Portugal |
| 1980 | Ireland | 1993 | Ireland | No semi-finals | 2006 | Bosnia and Herzegovina | Bosnia and Herzegovina |
| 1981 | France | 1994 | Ireland | No semi-finals | 2007 | Serbia | Serbia |
| 1982 | Germany | 1995 | Relegated | No semi-finals | 2008 | Serbia | Portugal |
| 1983 | Netherlands | 1996 | Ireland | Unknown1 | 2009 | Turkey | Turkey |
| 1984 | Ireland | 1997 | United Kingdom | No semi-finals | 2010 | Germany | Ireland |
| 1985 | Turkey | 1998 | Germany | No semi-finals | 2011 | Bosnia and Herzegovina | Serbia |
| 1986 | Sweden | 1999 | Relegated | No semi-finals | 2012 | Albania | Albania |
| 1987 | Ireland | 2000 | Germany | No semi-finals | 2013 | Italy | Hungary |
Question:
how many countries appear at least four times?
Answer:
3