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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 3 |
| 1955 | 1 |
| 1959 | 1 |
| 1961 | 1 |
| 1962 | 8 |
| 1963 | 46 |
| 1964 | 104 |
| 1965 | 12 |
| 1966 | 4 |
| 1967 | 2 |
| 1968 | 5 |
| 1969 | 22 |
| 1970 | 268 |
| 1971 | 478 |
| 1972 | 314 |
| 1973 | 23 |
| 1974 | 43 |
| 1975 | 130 |
| 1976 | 96 |
| 1977 | 81 |
| 1978 | 89 |
| 1979 | 100 |
| 1980 | 128 |
| 1981 | 142 |
| 1982 | 176 |
| 1983 | 296 |
| 1984 | 227 |
| 1985 | 263 |
| 1986 | 306 |
| 1987 | 309 |
| 1988 | 293 |
| 1989 | 340 |
| 1990 | 415 |
| 1991 | 398 |
| 1992 | 362 |
| 1993 | 359 |
| 1994 | 367 |
| 1995 | 442 |
| 1996 | 377 |
| 1997 | 356 |
| 1998 | 405 |
| 1999 | 482 |
| 2000 | 459 |
| 2001 | 536 |
| 2002 | 654 |
| 2003 | 713 |
| 2004 | 782 |
| 2005 | 870 |
| 2006 | 927 |
| 2007 | 1025 |
| 2008 | 991 |
| 2009 | 1020 |
| 2010 | 1124 |
| 2011 | 1233 |
| 2012 | 1258 |
| 2013 | 1387 |
| 2014 | 1339 |
| 2015 | 1458 |
| 2016 | 1350 |
| 2017 | 1378 |
| 2018 | 1373 |
| 2019 | 1420 |
| 2020 | 1560 |
| 2021 | 1680 |
| 2022 | 1701 |
| 2023 | 1534 |
| 2024 | 1383 |
| 2025 | 533 |