_id jaar meting trendlijn 1 1892 0 2 1893 0 3 1894 0 4 1895 0 5 1896 0 6 1897 0 7 1898 0 0.008 8 1899 0 0.02 9 1900 0 0.032 10 1901 0 0.044 11 1902 0 0.056 12 1903 0 0.068 13 1904 0 0.08 14 1905 0 0.092 15 1906 0 0.104 16 1907 0 0.116 17 1908 0 0.128 18 1909 0 0.14 19 1910 0 0.152 20 1911 2 0.164 21 1912 0 0.176 22 1913 0 0.188 23 1914 0 0.2 24 1915 0 0.212 25 1916 0 0.225 26 1917 0 0.237 27 1918 0 0.249 28 1919 0 0.261 29 1920 0 0.274 30 1921 1 0.286 31 1922 1 0.299 32 1923 1 0.311 33 1924 0 0.324 34 1925 0 0.338 35 1926 0 0.35 36 1927 0 0.362 37 1928 0 0.374 38 1929 1 0.384 39 1930 1 0.394 40 1931 0 0.403 41 1932 1 0.411 42 1933 0 0.417 43 1934 0 0.423 44 1935 0 0.427 45 1936 1 0.43 46 1937 0 0.432 47 1938 1 0.433 48 1939 0 0.433 49 1940 0 0.431 50 1941 1 0.429 51 1942 1 0.426 52 1943 0 0.421 53 1944 1 0.416 54 1945 0 0.411 55 1946 0 0.404 56 1947 4 0.398 57 1948 1 0.391 58 1949 0 0.384 59 1950 0 0.377 60 1951 0 0.37 61 1952 1 0.363 62 1953 0 0.356 63 1954 0 0.348 64 1955 0 0.341 65 1956 0 0.333 66 1957 1 0.325 67 1958 0 0.316 68 1959 1 0.307 69 1960 0 0.297 70 1961 0 0.288 71 1962 0 0.278 72 1963 0 0.268 73 1964 0 0.258 74 1965 0 0.248 75 1966 0 0.239 76 1967 0 0.23 77 1968 0 0.223 78 1969 0 0.216 79 1970 0 0.211 80 1971 0 0.207 81 1972 0 0.204 82 1973 0 0.203 83 1974 0 0.203 84 1975 1 0.204 85 1976 1 0.207 86 1977 0 0.212 87 1978 0 0.218 88 1979 0 0.225 89 1980 0 0.234 90 1981 0 0.242 91 1982 0 0.251 92 1983 1 0.26 93 1984 0 0.269 94 1985 0 0.279 95 1986 0 0.289 96 1987 0 0.299 97 1988 0 0.31 98 1989 0 0.322 99 1990 1 0.335 100 1991 0 0.348 101 1992 0 0.363 102 1993 0 0.382 103 1994 1 0.403 104 1995 2 0.425 105 1996 0 0.447 106 1997 1 0.47 107 1998 1 0.493 108 1999 0 0.517 109 2000 0 0.54 110 2001 0 0.563 111 2002 0 0.586 112 2003 1 0.61 113 2004 0 0.633 114 2005 1 0.656 115 2006 2 0.679 116 2007 0 0.703 117 2008 0 0.726 118 2009 0 0.749 119 2010 1 0.773 120 2011 0 0.796 121 2012 0 0.819 122 2013 1 0.843 123 2014 0 0.866 124 2015 1 0.89 125 2016 1 0.913 126 2017 1 0.937 127 2018 2 0.961 128 2019 3 0.986 129 2020 1 1.01 130 2021 0 1.035 131 2022 1 1.059 132 2023 2 1.084 133 2024 0 1.11 134 2025 2 1.135