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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 4 |
| 1953 | 12 |
| 1954 | 7 |
| 1955 | 14 |
| 1956 | 9 |
| 1957 | 18 |
| 1958 | 13 |
| 1959 | 14 |
| 1960 | 10 |
| 1961 | 13 |
| 1962 | 8 |
| 1964 | 3 |
| 1965 | 13 |
| 1966 | 44 |
| 1967 | 69 |
| 1968 | 117 |
| 1969 | 112 |
| 1970 | 139 |
| 1971 | 142 |
| 1972 | 189 |
| 1973 | 208 |
| 1974 | 259 |
| 1975 | 282 |
| 1976 | 335 |
| 1977 | 319 |
| 1978 | 326 |
| 1979 | 375 |
| 1980 | 473 |
| 1981 | 458 |
| 1982 | 397 |
| 1983 | 429 |
| 1984 | 540 |
| 1985 | 515 |
| 1986 | 537 |
| 1987 | 532 |
| 1988 | 597 |
| 1989 | 661 |
| 1990 | 679 |
| 1991 | 620 |
| 1992 | 635 |
| 1993 | 664 |
| 1994 | 753 |
| 1995 | 741 |
| 1996 | 771 |
| 1997 | 828 |
| 1998 | 715 |
| 1999 | 744 |
| 2000 | 784 |
| 2001 | 836 |
| 2002 | 966 |
| 2003 | 867 |
| 2004 | 1041 |
| 2005 | 1035 |
| 2006 | 1095 |
| 2007 | 1161 |
| 2008 | 1278 |
| 2009 | 1377 |
| 2010 | 1490 |
| 2011 | 1517 |
| 2012 | 1583 |
| 2013 | 1626 |
| 2014 | 1518 |
| 2015 | 1557 |
| 2016 | 1467 |
| 2017 | 1384 |
| 2018 | 1351 |
| 2019 | 1213 |
| 2020 | 1194 |
| 2021 | 1063 |
| 2022 | 646 |
| 2023 | 506 |
| 2024 | 148 |