| 2012 – Vol. XLV: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2011 – Vol. XLIV: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2010 – Vol. XLIII: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2009 – Vol. XLII: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2008 – Vol. XLI: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2007 – Vol. XXXX: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2006 – Vol. XXXIX: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2005 – Vol. XXXVIII: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2004 – Vol. XXXVII: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2003 – Vol. XXXVI: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2002 – Vol. XXXV: | No. 1 | No. 2 | No. 3–4 | |
| 2001 – Vol. XXXIV: | No. 1 | No. 2 | No. 3 | No. 4 |
| 2000 – Vol. XXXIII: | No. 1 | No. 2 | No. 3 | No. 4 |
| 1999 – Vol. XXXII: | – | No. 2 | No. 3 | No. 4 |
| 1998 – Vol. XXXI: | No. 1 | No. 2 | No. 3 | No. 4 |