| 1991 | 684 reads | 626 pages? duration |
| 1993 | 503 reads | 684 pages? duration |
| 1992 | 583 reads | 716 pages? duration |
| 1994 | 474 reads | 1,031 pages? duration |
| 1990 | 726 reads | 707 pages? duration |
| 1996 | 418 reads | 902 pages? duration |
| 2010 | 359 reads | 865 pages? duration |
| 2022 | 1,234 reads | 313 pages? duration |
| 2017 | 1,054 reads | 1,243 pages? duration |
| 2007 | 1,604 reads | 624 pages? duration |
| 2020 | 788 reads | 1,232 pages? duration |
| 2011 | 1,158 reads | 621 pages? duration |
| 2008 | 1,458 reads | 564 pages? duration |
| 2019 | 652 reads | 480 pages? duration |
| 2012 | 737 reads | 443 pages? duration |
| 2016 | 718 reads | 546 pages? duration |
| 2012 | 1,310 reads | 1,328 pages? duration |
| 7 | 647 reads | 564 pages? duration |
| 2010 | 1,593 reads | 1,007 pages? duration |