| Sept. contract | Sept. contract | Sept. contract | ||||
| July 18 | 175 | 167 | 147 | 116 | 280 | 236 |
| 25 | 163 | 169 | 138 | 117 | 276 | 234 |
| August 1 | 164 | 170 | 142 | 111 | 279 | 223 |
| 8 | 169 | 161 | 139 | 110 | 282 | 209 |
| 15 | 168 | 159 | 148 | 111 | 292 | 217 |
| 22 | 166 | 160 | 145 | 113 | 297 | 220 |
| 29 | 166 | 159 | 146 | 114 | 301 | 222 |
| May contract | May contract | May contract | ||||
| July 18 | 168 | 156 | 141 | 119 | 281 | 244 |
| 25 | 158 | 157 | 131 | 118 | 277 | 243 |
| August 1 | 155 | 158 | 135 | 115 | 280 | 234 |
| 8 | 162 | 153 | 134 | 114 | 283 | 231 |
| 15 | 159 | 151 | 142 | 114 | 290 | 230 |
| 22 | 158 | 153 | 138 | 115 | 292 | 233 |
| 29 | 159 | 154 | 140 | 118 | 296 | 235 |