| Month | % Correct |
|---|---|
| January | 99%
|
| July | 97%
|
| April | 96%
|
| June | 96%
|
| March | 96%
|
| May | 96%
|
| August | 90%
|
| December | 90%
|
| September | 90%
|
| November | 89%
|
| February | 87%
|
| October | 86%
|