|
| 1960 |
160 |
| 1965 |
188 |
| 1970 |
247 |
| 1971 |
258 |
| 1972 |
260 |
| 1973 |
264 |
| 1974 |
270 |
| 1975 |
274 |
| 1976 |
290 |
| 1977 |
308 |
| 1978 |
314 |
| 1979 |
328 |
| 1980 |
317 |
| 1981 |
314 |
| 1982 |
308 |
| 1983 |
328 |
| 1984 |
321 |
| 1985 |
327 |
| 1986 |
320 |
| 1987 |
328 |
| 1988 |
360 |
| 1989 |
364 |
| 1990 |
389 |
| 1991 |
357 |
| 1992 |
338 |
| 1993 |
365 |
| 1994 |
337 |
| 1995 |
297 |
| 1996 |
267 |
| 1997 |
267 |
| 1998 |
265 |
| 1999 |
274 |
| 2000 |
275 |
| 2001 |
284 |
| 2002 |
301 |
| 2003 |
288 |
| 2004 |
292 |
| 2005 |
280 |
| 2006 |
273 |
| 2007 |
270 |
| 2008 |
261 |
| 2009 |
247 |
| 2010 |
235 |
| 2011 |
217 |
| 2012 |
215 |
| 2013 |
214 |
| 2014 |
221 |
| 2015 |
229 |
| 2016 |
234 |
| 2017 |
238 |
| 2018 |
240 |
|
