DART Adult Passage Count Rolling 4 Year Geometric Mean for Chinook at Bonneville, Date Range 1/1-12/31
Year Annual Count 4 Year Rolling Geometric Mean
2017 * 428137 823800
2016 697987 1049938
2015 1337099 1006707
2014 1152642 849252
2013 1129664 777512
2012 589937 627834
2011 677171 608027
2010 809799 485800
2009 480284 429270
2008 518942 448129
2007 275954 506372
2006 493708 684483
2005 570413 788641
2004 846026 875846
2003 921314 727043
2002 870035 552378
2001 867728 403962
2000 401711 324357
1999 306981 294468
1998 248860 260986
1997 360673 249601
1996 272884 229845
1995 189419 217716
1994 208197 227646
1993 259337 248689
1992 219688 272381
1991 226411 318730
1990 296525 382297
1989 373205 404250
1988 411896 381631
1987 468610 324933
1986 370729 257794
1985 296429 233122
1984 216465 219338
1983 185665 217102
1982 247911 239788
1981 232299 269335
1980 207770 301889
1979 276306 377458
1978 394600 420497
1977 366657 412875
1976 507773 421597
1975 425566 395804
1974 366759 391102
1973 398635 395820
1972 394456 420467
1971 405702 405473
1970 384780 395208
1969 507588 383202
1968 341128 340911
1967 366153 341731
1966 340111 319153
1965 317956 305789
1964 344422 296746
1963 278560 275545
1962 286625 290688
1961 281980 319140
1960 256049 349003
1959 345028 363380
1958 416419 367222
1957 403286 344076
1956 300917 327862
1955 359853 356549
1954 320947 349384
1953 332479 358902
1952 420879 343106
1951 331788 343039
1950 357375 376272
1949 277697 397733
1948 420555 404637
1947 480276 351972
1946 446152 316273
1945 297488 308140
1944 240763 343882
1943 313120 388343
1942 401998 379698
1941 461443 344495
1940 391573  
1939 286156  
1938 272395  
* 2017 annual count and mean may be incomplete, contains current year data.

Query Notes

  1. Rolling 4 Year Geometric Mean is calculated using the annual count, within the date range, for the specified Year and the three previous years.
Generated
24 Sep 2017 03:44:23 PDT. Columbia River DART (Data Access in Real Time) www.cbr.washington.edu/dart.