Table 1.
Year | Season | |||
---|---|---|---|---|
Winter (n) | Spring (n) | Summer (n) | Autumn (n) | |
1999 | 107 | 117 | 108 | 126 |
2000 | 94 | 130 | 143 | 122 |
2001 | 143 | 150 | 209 | 189 |
2002 | 163 | 143 | 245 | 212 |
2003 | 166 | 185 | 278 | 261 |
2004 | 183 | 238 | 348 | 252 |
Total | 856 | 963 | 1331 | 1162 |
Average | 142.66 | 160.50 | 221.83 | 193.66 |
Seasonal index | 79.4 | 89.33 | 123.47 | 107.79 |
Chi-square | 35.675 | df = 15; | ||
value | P<0.001 |