Year | All mosquito speciesa | Cs. melanura | ||||
---|---|---|---|---|---|---|
No. of specimens | No. of pools | No. of EEEV-positive pools (%) | No. of specimens | No. of pools | No. of EEEV-positive pools (%) | |
1993b | 119,280 | 1482b | 6 (0.34) | 67,165 | 1013b | 6 (0.5) |
1994 | 275,262 | 4101 | 68 (1.66) | 43,584 | 735 | 62 (8.4) |
1995 | 127,866 | 2301 | 0 | 12,245 | 449 | 0 |
1996 | 266,685 | 4659 | 29 (0.62) | 22,766 | 668 | 25 (0.04) |
1997 | 140,189 | 2358 | 5 (0.21) | 19,834 | 512 | 5 (0.01) |
1998 | 111,140 | 1954 | 0 | 19,322 | 385 | 0 |
1999 | 102,755 | 1911 | 0 | 9056 | 319 | 0 |
2000c | 252,003 | 7871c | 0 | 14,529 | 395c | 0 |
2001 | 191,981 | 6360 | 0 | 11,349 | 361 | 0 |
2002 | 194,906 | 6738 | 0 | 6524 | 222 | 0 |
2003 | 249,554 | 7714 | 10 (0.13) | 9190 | 286 | 9 (3.15) |
2004 | 209,362 | 6773 | 17 (0.26) | 10,255 | 302 | 13 (4.63) |
2005 | 196,371 | 7178 | 5 (0.07) | 4976 | 199 | 4 (2.01) |
2006 | 216,924 | 6895 | 68 (0.99) | 16,111 | 482 | 66 (13.69) |
2007 | 160,886 | 5155 | 20 (0.39) | 9654 | 330 | 19 (5.76) |
2008 | 194,988 | 6509 | 21 (0.32) | 9785 | 347 | 19 (5.48) |
2009d | 250,396 | 7191d | 59 (0.82) | 15,189 | 440d | 52 (11.82) |
2010 | 249,120 | 7409 | 66 (0.89) | 12,849 | 417 | 61 (14.63) |
2011 | 241,447 | 6767 | 52 (0.77) | 11,725 | 446 | 46 (10.31) |
2012 | 208,955 | 5830 | 1 (0.02) | 7763 | 298 | 1 (0.34) |
Total | 3,960,070 | 107,156 | 427 | 333,871 | 8606 | 388 |