The chart and table represent Columbia River DART data query requests made from 1998 through the present. Columbia Basin Research staff queries and other extraneous queries have been removed from the final counts.
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Comparison of DART Queries for 1998 - 2009 by month | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | Usage Change 2009/2008 | |
| January | 3396 | 5793 | 8848 | 11025 | 11766 | 9193 | 9605 | 9729 | 10039 | 10963 | 16348 | 17150 | 104 % |
| February | 3686 | 9995 | 10826 | 11113 | 11237 | 16687 | 15517 | 12256 | 12016 | 13995 | 17803 | 18865 | 105 % |
| March | 5979 | 13889 | 16198 | 25872 | 29060 | 28332 | 37199 | 29993 | 25655 | 25383 | 32860 | 37908 | 115 % |
| April | 11466 | 15685 | 27658 | 62143 | 70968 | 61133 | 85887 | 67568 | 41794 | 45448 | 66610 | 62659 | 94 % |
| May | 11454 | 22117 | 33736 | 46855 | 75532 | 47215 | 64055 | 73020 | 73692 | 54645 | 88126 | 111838 | 126 % |
| June | 10767 | 25372 | 27962 | 32484 | 38512 | 33932 | 40281 | 47457 | 51150 | 38346 | 68947 | 67877 | 98 % |
| July | 10369 | 26507 | 28136 | 35276 | 37507 | 31644 | 30866 | 37176 | 32591 | 35584 | 59861 | 55780 | 93 % |
| August | 15342 | 31741 | 31312 | 44693 | 36090 | 31925 | 39803 | 43962 | 42515 | 45754 | 50739 | 72692 | 143 % |
| September | 19767 | 32753 | 35483 | 48654 | 37722 | 53175 | 53899 | 51817 | 52259 | 54871 | 58969 | 70221 | 119 % |
| Year-to-Date | 92226 | 183852 | 220159 | 318115 | 348394 | 313236 | 377112 | 372978 | 341711 | 324989 | 460263 | 514990 | 111 % |
| October | 14928 | 21809 | 24347 | 33963 | 24168 | 28208 | 25497 | 29818 | 32349 | 37058 | 34124 | NA | |
| November | 8940 | 12728 | 13454 | 17613 | 11211 | 12136 | 13298 | 14360 | 16869 | 19181 | 20988 | NA | |
| December | 6698 | 11784 | 10039 | 12261 | 8097 | 8994 | 9220 | 8734 | 9296 | 14319 | 16770 | NA | |
| Total | 122792 | 230173 | 267999 | 381952 | 391870 | 362574 | 425127 | 425890 | 400225 | 395547 | 532145 | 514990 | 96 % |