Table 1.
Annual Periods a | N Visits (c) | N Farms | Mean Size | N Visits due to myxo. (c) | N Farms with myxo. | N Visits due to RHD (c) | N Farms with RHD |
---|---|---|---|---|---|---|---|
1988–1991 | 1633 (1618) | 470 | 363 | 195 (190) | 105 | 55 (45) | 39 |
1991–1994 | 1256 (1252) | 433 | 381 | 101 (97) | 68 | 5 (5) | 4 |
1994–1997 | 1292 (1291) | 468 | 447 | 82 (81) | 70 | 6 (6) | 6 |
1997–2000 | 1107 (1104) | 327 | 585 | 60 (57) | 30 | 8 (8) | 6 |
2000–2003 | 1231 (1231) | 255 | 773 | 46 (46) | 34 | 6 (6) | 6 |
2003–2006 | 1065 (1058) | 313 | 859 | 65 (58) | 45 | 6 (6) | 6 |
2006–2009 | 1269 (1268) | 316 | 947 | 50 (49) | 36 | 6 (6) | 6 |
2009–2012 | 1818 (1806) | 307 | 982 | 92 (88) | 57 | 76 (58) | 41 |
2012–2015 | 1465 (1401) | 242 | 926 | 104 (92) | 43 | 137 (85) | 55 |
2015–2018 | 1331 (1312) | 196 | 985 | 67 (59) | 33 | 39 (28) | 15 |
Total 1988–2018 | 13,467 (13,326 c) | 1714 b | - | 862 (817 c) | 394 b | 344 (253 c) | 156 b |
a The annual periods of time were from 11 September 1988 to 11 September 1991 and from 12 September 1991 to 11 September 1994, and so on. b These were different farms, not the sum of farms. c In brackets: visits for calendar month used in the studies on occurrence.