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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 2 |
| 1956 | 3 |
| 1958 | 1 |
| 1959 | 10 |
| 1960 | 4 |
| 1961 | 2 |
| 1963 | 2 |
| 1965 | 18 |
| 1966 | 29 |
| 1967 | 48 |
| 1968 | 65 |
| 1969 | 85 |
| 1970 | 113 |
| 1971 | 136 |
| 1972 | 129 |
| 1973 | 127 |
| 1974 | 138 |
| 1975 | 81 |
| 1976 | 76 |
| 1977 | 94 |
| 1978 | 61 |
| 1979 | 56 |
| 1980 | 54 |
| 1981 | 70 |
| 1982 | 109 |
| 1983 | 79 |
| 1984 | 111 |
| 1985 | 140 |
| 1986 | 132 |
| 1987 | 110 |
| 1988 | 125 |
| 1989 | 116 |
| 1990 | 109 |
| 1991 | 115 |
| 1992 | 112 |
| 1993 | 111 |
| 1994 | 102 |
| 1995 | 96 |
| 1996 | 126 |
| 1997 | 162 |
| 1998 | 157 |
| 1999 | 182 |
| 2000 | 181 |
| 2001 | 194 |
| 2002 | 197 |
| 2003 | 217 |
| 2004 | 198 |
| 2005 | 224 |
| 2006 | 249 |
| 2007 | 253 |
| 2008 | 259 |
| 2009 | 247 |
| 2010 | 290 |
| 2011 | 364 |
| 2012 | 358 |
| 2013 | 380 |
| 2014 | 366 |
| 2015 | 399 |
| 2016 | 366 |
| 2017 | 363 |
| 2018 | 336 |
| 2019 | 387 |
| 2020 | 334 |
| 2021 | 314 |
| 2022 | 274 |
| 2023 | 192 |
| 2024 | 67 |