| 2026 Vol.42 | No.2 | No.1 | ||||
| 2025 Vol.41 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2024 Vol.40 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2023 Vol.39 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2022 Vol.38 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2021 Vol.37 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2020 Vol.36 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2019 Vol.35 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2018 Vol.34 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2017 Vol.33 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2016 Vol.32 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2015 Vol.31 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2014 Vol.30 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2013 Vol.29 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2012 Vol.28 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2011 Vol.27 | No.6 | No.5 | No.4 | No.3 | No.2 | No.1 |
| 2010 Vol.26 | No.1 | |||||
| 2009 Vol.25 | No.3 | No.2 | ||||
| 2008 Vol.24 | No.4 | No.3 | No.2 | No.1 | ||
| 1994 Vol.10 | No.1 | |||||
| 1993 Vol.9 | No.1 | |||||
| 1992 Vol.8 | No.1 | |||||
| 1991 Vol.7 | No.1 | |||||
| 1990 Vol.6 | No.1 | |||||
| 1989 Vol.5 | No.1 | |||||
| 1988 Vol.4 | No.1 | |||||
| 1987 Vol.3 | No.1 | |||||
| 1986 Vol.2 | No.1 | |||||
| 1985 Vol.1 | No.1 |