Latest years first · counts are girls + boys combined (split shown in table).
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 2024 | 1,820 | 1,820/0 | 15,368 | 25/15,343 |
| 2023 | 1,751 | 1,751/0 | 14,810 | 28/14,782 |
| 2022 | 1,862 | 1,857/5 | 15,189 | 28/15,161 |
| 2021 | 1,916 | 1,916/0 | 14,733 | 26/14,707 |
| 2020 | 1,771 | 1,771/0 | 14,298 | 23/14,275 |
| 2019 | 2,064 | 2,059/5 | 13,986 | 22/13,964 |
| 2018 | 2,068 | 2,068/0 | 13,518 | 19/13,499 |
| 2017 | 2,036 | 2,036/0 | 13,239 | 15/13,224 |
| 2016 | 2,124 | 2,119/5 | 13,083 | 18/13,065 |
| 2015 | 2,176 | 2,176/0 | 11,687 | 20/11,667 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 2014 | 2,336 | 2,331/5 | 9,463 | 13/9,450 |
| 2013 | 2,347 | 2,340/7 | 7,287 | 12/7,275 |
| 2012 | 2,383 | 2,383/0 | 5,931 | 9/5,922 |
| 2011 | 2,413 | 2,413/0 | 5,422 | 9/5,413 |
| 2010 | 2,665 | 2,659/6 | 4,671 | 7/4,664 |
| 2009 | 2,986 | 2,986/0 | 4,294 | 7/4,287 |
| 2008 | 3,495 | 3,489/6 | 3,615 | 11/3,604 |
| 2007 | 3,869 | 3,864/5 | 2,917 | 7/2,910 |
| 2006 | 4,019 | 4,009/10 | 2,352 | 0/2,352 |
| 2005 | 3,620 | 3,611/9 | 1,793 | 0/1,793 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 2004 | 3,652 | 3,638/14 | 1,497 | 6/1,491 |
| 2003 | 3,863 | 3,853/10 | 1,379 | 5/1,374 |
| 2002 | 3,659 | 3,650/9 | 1,171 | 5/1,166 |
| 2001 | 3,499 | 3,491/8 | 978 | 0/978 |
| 2000 | 3,459 | 3,447/12 | 978 | 0/978 |
| 1999 | 3,419 | 3,405/14 | 782 | 0/782 |
| 1998 | 2,836 | 2,827/9 | 740 | 5/735 |
| 1997 | 2,266 | 2,259/7 | 669 | 0/669 |
| 1996 | 1,481 | 1,470/11 | 607 | 0/607 |
| 1995 | 1,309 | 1,297/12 | 597 | 0/597 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1994 | 1,143 | 1,131/12 | 643 | 0/643 |
| 1993 | 1,096 | 1,076/20 | 670 | 5/665 |
| 1992 | 1,075 | 1,053/22 | 664 | 0/664 |
| 1991 | 818 | 801/17 | 582 | 0/582 |
| 1990 | 803 | 785/18 | 625 | 0/625 |
| 1989 | 632 | 613/19 | 460 | 0/460 |
| 1988 | 566 | 558/8 | 440 | 0/440 |
| 1987 | 515 | 494/21 | 467 | 6/461 |
| 1986 | 495 | 483/12 | 344 | 6/338 |
| 1985 | 534 | 516/18 | 371 | 0/371 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1984 | 432 | 419/13 | 404 | 7/397 |
| 1983 | 444 | 429/15 | 434 | 0/434 |
| 1982 | 495 | 487/8 | 455 | 0/455 |
| 1981 | 480 | 466/14 | 409 | 6/403 |
| 1980 | 509 | 497/12 | 400 | 7/393 |
| 1979 | 436 | 424/12 | 408 | 0/408 |
| 1978 | 380 | 365/15 | 430 | 8/422 |
| 1977 | 408 | 393/15 | 345 | 7/338 |
| 1976 | 431 | 411/20 | 341 | 5/336 |
| 1975 | 428 | 408/20 | 355 | 0/355 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1974 | 390 | 381/9 | 347 | 0/347 |
| 1973 | 359 | 352/7 | 381 | 7/374 |
| 1972 | 366 | 356/10 | 373 | 5/368 |
| 1971 | 455 | 436/19 | 422 | 6/416 |
| 1970 | 433 | 415/18 | 366 | 0/366 |
| 1969 | 395 | 384/11 | 336 | 7/329 |
| 1968 | 392 | 381/11 | 332 | 7/325 |
| 1967 | 365 | 352/13 | 290 | 0/290 |
| 1966 | 363 | 353/10 | 342 | 5/337 |
| 1965 | 343 | 327/16 | 303 | 0/303 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1964 | 404 | 389/15 | 367 | 0/367 |
| 1963 | 393 | 380/13 | 358 | 0/358 |
| 1962 | 403 | 393/10 | 312 | 0/312 |
| 1961 | 386 | 366/20 | 348 | 0/348 |
| 1960 | 406 | 391/15 | 370 | 0/370 |
| 1959 | 410 | 390/20 | 379 | 8/371 |
| 1958 | 374 | 359/15 | 453 | 0/453 |
| 1957 | 453 | 440/13 | 452 | 0/452 |
| 1956 | 430 | 405/25 | 488 | 5/483 |
| 1955 | 465 | 450/15 | 507 | 0/507 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1954 | 385 | 368/17 | 537 | 0/537 |
| 1953 | 498 | 480/18 | 529 | 8/521 |
| 1952 | 437 | 419/18 | 566 | 11/555 |
| 1951 | 386 | 368/18 | 552 | 0/552 |
| 1950 | 377 | 362/15 | 556 | 0/556 |
| 1949 | 419 | 394/25 | 603 | 6/597 |
| 1948 | 406 | 374/32 | 642 | 11/631 |
| 1947 | 401 | 378/23 | 629 | 5/624 |
| 1946 | 382 | 353/29 | 625 | 6/619 |
| 1945 | 295 | 275/20 | 563 | 5/558 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1944 | 330 | 309/21 | 572 | 7/565 |
| 1943 | 378 | 356/22 | 683 | 15/668 |
| 1942 | 367 | 333/34 | 617 | 5/612 |
| 1941 | 361 | 335/26 | 601 | 0/601 |
| 1940 | 355 | 328/27 | 589 | 7/582 |
| 1939 | 358 | 340/18 | 604 | 6/598 |
| 1938 | 378 | 350/28 | 568 | 0/568 |
| 1937 | 421 | 399/22 | 615 | 6/609 |
| 1936 | 411 | 376/35 | 591 | 0/591 |
| 1935 | 452 | 425/27 | 656 | 9/647 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1934 | 455 | 430/25 | 741 | 9/732 |
| 1933 | 470 | 450/20 | 595 | 0/595 |
| 1932 | 537 | 516/21 | 747 | 6/741 |
| 1931 | 594 | 561/33 | 784 | 6/778 |
| 1930 | 628 | 595/33 | 859 | 9/850 |
| 1929 | 707 | 672/35 | 896 | 11/885 |
| 1928 | 688 | 651/37 | 942 | 8/934 |
| 1927 | 771 | 731/40 | 1,014 | 12/1,002 |
| 1926 | 775 | 744/31 | 1,070 | 5/1,065 |
| 1925 | 938 | 900/38 | 1,062 | 13/1,049 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1924 | 947 | 911/36 | 1,183 | 11/1,172 |
| 1923 | 870 | 855/15 | 1,231 | 10/1,221 |
| 1922 | 910 | 888/22 | 1,224 | 10/1,214 |
| 1921 | 1,003 | 971/32 | 1,204 | 10/1,194 |
| 1920 | 1,021 | 992/29 | 1,175 | 11/1,164 |
| 1919 | 981 | 957/24 | 1,220 | 11/1,209 |
| 1918 | 1,060 | 1,041/19 | 1,258 | 10/1,248 |
| 1917 | 948 | 931/17 | 1,185 | 10/1,175 |
| 1916 | 1,011 | 1,000/11 | 1,118 | 15/1,103 |
| 1915 | 956 | 943/13 | 1,140 | 9/1,131 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1914 | 756 | 747/9 | 873 | 12/861 |
| 1913 | 663 | 657/6 | 644 | 0/644 |
| 1912 | 566 | 556/10 | 653 | 7/646 |
| 1911 | 457 | 447/10 | 338 | 5/333 |
| 1910 | 399 | 389/10 | 307 | 0/307 |
| 1909 | 356 | 356/0 | 246 | 0/246 |
| 1908 | 351 | 351/0 | 207 | 0/207 |
| 1907 | 326 | 326/0 | 207 | 0/207 |
| 1906 | 322 | 317/5 | 183 | 0/183 |
| 1905 | 292 | 292/0 | 220 | 9/211 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1904 | 277 | 271/6 | 200 | 0/200 |
| 1903 | 257 | 257/0 | 210 | 0/210 |
| 1902 | 256 | 256/0 | 181 | 0/181 |
| 1901 | 214 | 214/0 | 187 | 0/187 |
| 1900 | 286 | 286/0 | 256 | 0/256 |
| 1899 | 243 | 243/0 | 161 | 0/161 |
| 1898 | 252 | 252/0 | 186 | 0/186 |
| 1897 | 210 | 210/0 | 174 | 0/174 |
| 1896 | 232 | 232/0 | 194 | 0/194 |
| 1895 | 212 | 212/0 | 216 | 0/216 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1894 | 241 | 241/0 | 222 | 0/222 |
| 1893 | 189 | 189/0 | 214 | 0/214 |
| 1892 | 158 | 158/0 | 238 | 0/238 |
| 1891 | 150 | 150/0 | 212 | 0/212 |
| 1890 | 160 | 160/0 | 218 | 0/218 |
| 1889 | 153 | 153/0 | 210 | 0/210 |
| 1888 | 144 | 144/0 | 206 | 0/206 |
| 1887 | 109 | 109/0 | 203 | 0/203 |
| 1886 | 131 | 131/0 | 230 | 0/230 |
| 1885 | 102 | 102/0 | 258 | 0/258 |
| Year | Isabel (total | F/B) | Oliver (total | F/B) |
|---|---|---|
| 1884 | 102 | 102/0 | 245 | 0/245 |
| 1883 | 83 | 83/0 | 219 | 0/219 |
| 1882 | 72 | 72/0 | 244 | 0/244 |
| 1881 | 76 | 76/0 | 238 | 0/238 |
| 1880 | 81 | 81/0 | 234 | 0/234 |