Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
1992 | 72 | 51 | 88 | 65 | 58 | 100 | 107 | 91 | 107 | 96 | 79 | 71 |
1993 | 61 | 93 | 173 | 119 | 183 | 160 | 170 | 140 | 164 | 156 | 157 | 56 |
1994 | 144 | 210 | 211 | 224 | 189 | 258 | 143 | 98 | 142 | 108 | 185 | 142 |
1995 | 118 | 128 | 148 | 102 | 83 | 67 | 114 | 133 | 140 | 177 | 135 | 76 |
1996 | 115 | 128 | 107 | 116 | 64 | 52 | 59 | 44 | 83 | 67 | 81 | 76 |
1997 | 70 | 141 | 48 | 91 | 79 | 36 | 118 | 87 | 63 | 74 | 105 | 57 |
1998 | 62 | 139 | 37 | 56 | 18 | 17 | 10 | 51 | 22 | 9 | 27 | 14 |
1999 | 73 | 28 | 33 | 40 | 22 | 43 | 37 | 48 | 13 | 9 | 53 | 28 |
2000 | 58 | 13 | 27 | 52 | 64 | 21 | 24 | 28 | 18 | 11 | 32 | 5 |
2001 | 13 | 9 | 14 | 21 | 14 | 2 | 10 | 12 | 6 | 12 | 10 | 2 |
2002 | 8 | 21 | 8 | 5 | 17 | 2 | 11 | 2 | 17 | 10 | 4 | 9 |
2003 | 13 | 9 | 1 | 4 | 2 | 2 | 5 | |||||
2004 | 2 | 1 | 2 | |||||||||
2005 | 1 | 3 | ||||||||||
2006 | 3 | 3 | ||||||||||
2007 | 4 | |||||||||||
2008 | 3 |