Percentage changes are compared to the same period last year
| YEAR TO DATE | |||||||||||||||
| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | TOTALS | % CHANGE | ||
| 2011 | 11 | 12 | 18 | 18 | 8 | 11 | 26 | 21 | 15 | 13 | 11 | 11 | 175 | 54.9% | INCREASE |
| 2010 | 16 | 12 | 9 | 7 | 4 | 13 | 13 | 6 | 7 | 3 | 8 | 15 | 113 | 38.3% | DECREASE |
| 2009 | 13 | 5 | 14 | 19 | 23 | 6 | 16 | 21 | 12 | 17 | 24 | 13 | 183 | 9.0% | DECREASE |
| 2008 | 15 | 18 | 17 | 17 | 11 | 18 | 17 | 8 | 14 | 27 | 20 | 19 | 201 | 9.2% | INCREASE |
| 2007 | 16 | 10 | 24 | 24 | 13 | 14 | 14 | 11 | 18 | 8 | 14 | 18 | 184 | 44.0% | INCREASE |
| 2006 | 12 | 5 | 10 | 7 | 8 | 7 | 12 | 15 | 8 | 5 | 3 | 11 | 103 | 31.1% | DECREASE |
| 2005 | 7 | 10 | 14 | 5 | 7 | 16 | 19 | 13 | 12 | 12 | 12 | 8 | 135 | 0.1% | DECREASE |
| 2004 | 8 | 12 | 21 | 15 | 10 | 12 | 12 | 16 | 18 | 9 | 10 | 11 | 154 | 0.2% | INCREASE |
| 2003 | 7 | 3 | 7 | 9 | 10 | 16 | 12 | 4 | 7 | 6 | 9 | 23 | 113 | 0.2% | DECREASE |
| 2002 | 6 | 6 | 8 | 17 | 15 | 13 | 17 | 24 | 16 | 7 | 11 | 11 | 151 | 2.0% | INCREASE |
| 2001 | 12 | 9 | 14 | 12 | 14 | 13 | 14 | 18 | 5 | 13 | 13 | 11 | 148 | 19.6% | INCREASE |
| 2000 | 11 | 9 | 10 | 7 | 8 | 11 | 7 | 12 | 11 | 17 | 8 | 8 | 119 | 14.3% | INCREASE |
| 1999 | 6 | 12 | 11 | 7 | 10 | 8 | 7 | 5 | 9 | 6 | 6 | 15 | 102 | 5.6% | DECREASE |
| 1998 | 18 | 10 | 13 | 8 | 5 | 10 | 4 | 9 | 6 | 11 | 6 | 8 | 108 | 28.9% | DECREASE |
| 1997 | 16 | 12 | 10 | 5 | 14 | 20 | 8 | 20 | 7 | 17 | 8 | 15 | 152 | 16.5% | DECREASE |
| 1996 | 9 | 13 | 7 | 16 | 18 | 12 | 15 | 24 | 10 | 16 | 18 | 24 | 182 | 3.4% | INCREASE |
| 1995 | 25 | 21 | 14 | 15 | 15 | 17 | 10 | 9 | 12 | 13 | 9 | 16 | 176 | 20.7% | DECREASE |
| 1994 | 11 | 17 | 28 | 13 | 20 | 15 | 22 | 13 | 24 | 17 | 22 | 20 | 222 | 37.9% | INCREASE |
| 1993 | 16 | 9 | 14 | 10 | 13 | 14 | 8 | 12 | 20 | 16 | 17 | 12 | 161 | 5.9% | INCREASE |
| 1992 | 11 | 17 | 10 | 10 | 3 | 11 | 16 | 14 | 14 | 15 | 12 | 19 | 152 | 28.8% | INCREASE |
| 1991 | 5 | 6 | 8 | 4 | 6 | 5 | 10 | 10 | 13 | 14 | 10 | 27 | 118 | 29.7% | INCREASE |
| 1990 | 3 | 7 | 6 | 8 | 10 | 7 | 7 | 8 | 9 | 8 | 9 | 9 | 91 | 24.2% | DECREASE |
| 1989 | 16 | 4 | 6 | 11 | 4 | 7 | 8 | 9 | 8 | 15 | 22 | 10 | 120 | 9.1% | INCREASE |
| 1988 | 14 | 11 | 9 | 6 | 12 | 8 | 12 | 11 | 2 | 5 | 11 | 9 | 110 | 26.7% | DECREASE |
| 1987 | 13 | 10 | 18 | 14 | 9 | 6 | 14 | 20 | 18 | 5 | 7 | 16 | 150 | 20.2% | DECREASE |
| 1986 | 10 | 14 | 18 | 5 | 22 | 11 | 21 | 17 | 12 | 20 | 22 | 16 | 188 | 21.3% | INCREASE |
| 1985 | 19 | 11 | 11 | 6 | 12 | 18 | 11 | 19 | 9 | 17 | 12 | 10 | 155 | 13.4% | DECREASE |
| 1984 | 14 | 25 | 23 | 7 | 12 | 12 | 22 | 10 | 16 | 9 | 14 | 15 | 179 | 7.2% | INCREASE |
| 1983 | 18 | 22 | 19 | 13 | 12 | 14 | 10 | 14 | 5 | 13 | 9 | 18 | 167 | 18.9% | DECREASE |
| 1982 | 15 | 13 | 13 | 25 | 14 | 9 | 24 | 19 | 16 | 23 | 14 | 21 | 206 | 23.4% | INCREASE |
| 1981 | 12 | 16 | 13 | 11 | 14 | 18 | 18 | 20 | 7 | 6 | 13 | 19 | 167 | 4.4% | INCREASE |
| 1980 | 7 | 6 | 16 | 12 | 13 | 13 | 7 | 26 | 13 | 23 | 7 | 17 | 160 | 5.0% | DECREASE |
| 1979 | 23 | 17 | 15 | 13 | 17 | 12 | 11 | 26 | 36 | 24 | 17 | 22 | 233 | 17.1% | INCREASE |
| 1978 | 12 | 15 | 10 | 11 | 14 | 16 | 13 | 33 | 14 | 26 | 23 | 12 | 199 | 8.7% | INCREASE |
| 1977 | 10 | 13 | 22 | 5 | 10 | 15 | 18 | 14 | 14 | 13 | 23 | 26 | 183 | 12.0% | DECREASE |
| 1976 | 14 | 17 | 10 | 19 | 11 | 14 | 28 | 18 | 17 | 16 | 22 | 22 | 208 | 2.3% | DECREASE |
| 1975 | 13 | 24 | 23 | 14 | 17 | 17 | 16 | 28 | 18 | 16 | 12 | 15 | 213 | 9.0% | DECREASE |
| 1974 | 8 | 20 | 16 | 20 | 28 | 17 | 25 | 19 | 15 | 32 | 19 | 15 | 234 | 25.1% | INCREASE |
| 1973 | 11 | 8 | 17 | 19 | 12 | 18 | 9 | 9 | 21 | 13 | 18 | 32 | 187 | 42.7% | INCREASE |
| 1972 | 6 | 15 | 6 | 11 | 11 | 7 | 4 | 16 | 18 | 12 | 14 | 11 | 131 | INCREASE | |
| THE TOTALS IN THE SHADED AREA ARE USED FOR THE COMPARISON | |||||||||||||||