| Registry | Years | Registry/Year | % of total (171) |
| 1 | 1967,1968, 1969, 1971, 1988, 1989, 1994, 1995, 1996, 1997, 2008, 2012, 2014 | 13 | 7.60 |
| 2 | 1973-1975, 1977, 1980, 1981, 1992, 2013 | 16 | 9.37 |
| 3 | 1972, 1976, 1978, 1984, 1987, 1999, 2011 | 21 | 12.28 |
| 4 | 1970, 1979, 1982, 1986, 2015 | 20 | 11.69 |
| 5 | 1983, 2009 | 10 | 5.86 |
| 7 | 2010 | 7 | 4.09 |
| 8 | 2017 | 8 | 4.68 |
| 9 | 2016 | 9 | 5.26 |
| 11 | 2020 | 11 | 6.43 |
| 14 | 1985 | 14 | 8.19 |
| 20 | 2019 | 20 | 11.69 |
| 22 | 2018 | 22 | 12.86 |
| Total |
| 171 | 100.00 |