| July | 232 messages | |
| June | 1399 messages | |
| May | 1506 messages | |
| April | 1513 messages | |
| March | 1278 messages | |
| Februrary | 1327 messages | |
| January | 1419 messages |
| December | 1494 messages | |
| November | 1585 messages | |
| October | 1726 messages | |
| September | 1724 messages | |
| August | 1370 messages | |
| July | 1407 messages | |
| June | 1729 messages | |
| May | 1753 messages | |
| April | 1659 messages | |
| March | 1978 messages | |
| Februrary | 1721 messages | |
| January | 1885 messages |
| December | 1989 messages | |
| November | 2046 messages | |
| October | 1924 messages | |
| September | 1671 messages | |
| August | 2293 messages | |
| July | 2145 messages | |
| June | 1808 messages | |
| May | 1489 messages | |
| April | 1423 messages | |
| March | 1910 messages | |
| Februrary | 1966 messages | |
| January | 1880 messages |
| December | 2185 messages | |
| November | 1977 messages | |
| October | 2199 messages | |
| September | 1820 messages | |
| August | 2079 messages | |
| July | 2312 messages | |
| June | 2660 messages | |
| May | 1432 messages | |
| April | 2279 messages | |
| March | 2560 messages | |
| Februrary | 2150 messages | |
| January | 2630 messages |
| December | 2603 messages | |
| November | 2768 messages | |
| October | 2328 messages | |
| September | 2911 messages | |
| August | 2537 messages | |
| July | 2928 messages | |
| June | 3085 messages | |
| May | 3382 messages | |
| April | 3659 messages | |
| March | 3657 messages | |
| Februrary | 3545 messages | |
| January | 3756 messages |
| December | 3037 messages | |
| November | 2967 messages | |
| October | 3475 messages | |
| September | 3622 messages | |
| August | 3862 messages | |
| July | 3184 messages | |
| June | 3900 messages | |
| May | 4021 messages | |
| April | 3584 messages | |
| March | 2978 messages | |
| Februrary | 2453 messages | |
| January | 3292 messages |
| December | 3571 messages | |
| November | 3077 messages | |
| October | 3263 messages | |
| September | 3003 messages | |
| August | 2966 messages | |
| July | 3148 messages | |
| June | 2215 messages | |
| May | 2623 messages | |
| April | 2363 messages | |
| March | 2586 messages | |
| Februrary | 2534 messages | |
| January | 2887 messages |
| December | 1748 messages | |
| November | 2912 messages | |
| October | 1430 messages |