← All namesPorter
Raw counts
| Year | Count |
|---|
| 1910 | 12 |
| 1911 | 13 |
| 1912 | 30 |
| 1913 | 47 |
| 1914 | 59 |
| 1915 | 77 |
| 1916 | 114 |
| 1917 | 107 |
| 1918 | 122 |
| 1919 | 104 |
| 1920 | 146 |
| 1921 | 134 |
| 1922 | 92 |
| 1923 | 89 |
| 1924 | 125 |
| 1925 | 82 |
| 1926 | 54 |
| 1927 | 76 |
| 1928 | 95 |
| 1929 | 51 |
| 1930 | 47 |
| 1931 | 48 |
| 1932 | 52 |
| 1933 | 53 |
| 1934 | 45 |
| 1936 | 23 |
| 1937 | 31 |
| 1938 | 44 |
| 1939 | 14 |
| 1940 | 30 |
| 1941 | 26 |
| 1942 | 37 |
| 1943 | 19 |
| 1944 | 20 |
| 1945 | 6 |
| 1946 | 6 |
| 1947 | 18 |
| 1948 | 27 |
| 1949 | 38 |
| 1950 | 28 |
| 1951 | 17 |
| 1952 | 20 |
| 1954 | 10 |
| 1955 | 21 |
| 1956 | 37 |
| 1957 | 21 |
| 1963 | 5 |
| 1966 | 10 |
| 1968 | 5 |
| 1969 | 11 |
| 1983 | 5 |
| 1984 | 6 |
| 1988 | 6 |
| 1990 | 7 |
| 1991 | 12 |
| 1992 | 10 |
| 1993 | 16 |
| 1994 | 17 |
| 1995 | 26 |
| 1996 | 43 |
| 1997 | 45 |
| 1998 | 69 |
| 1999 | 118 |
| 2000 | 143 |
| 2001 | 210 |
| 2002 | 230 |
| 2003 | 289 |
| 2004 | 354 |
| 2005 | 441 |
| 2006 | 610 |
| 2007 | 592 |
| 2008 | 657 |
| 2009 | 624 |
| 2010 | 686 |
| 2011 | 629 |
| 2012 | 12 |
| 2012 | 757 |
| 2013 | 902 |
| 2014 | 989 |
| 2015 | 6 |
| 2015 | 1,147 |
| 2016 | 6 |
| 2016 | 982 |
| 2017 | 1,043 |
| 2018 | 946 |
| 2019 | 17 |
| 2019 | 740 |
| 2020 | 6 |
| 2020 | 796 |
| 2021 | 9 |
| 2021 | 887 |
| 2022 | 28 |
| 2022 | 709 |
| 2023 | 10 |
| 2023 | 642 |
| 2024 | 40 |
| 2024 | 513 |