| Covers listed |
|
| 1974: | #1 /December, |
| 1975: | #2 /January, #3 /February, #4 /March, #5 /April, #6 /May, #7 /June, #8 /July, #9 /August, #10 /September, #11 /October, #12 /November, #13 /December, |
| 1976: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1977: | July-August, January, February, March, April, May, June, September, October, November, December 1977-January 1978, |
| 1978: | February, March, April, May, June, July-August, September, October, November, December 1978-January 1979, |
| 1979: | February, March, April, May, June, July-August, September, October, November, December 1979-January 1980, |
| 1980: | February, March, April, May, June, July-August, September, October-November, December 1980-January 1981, |
| 1981: | February-March, April-May, June-July, August-September, October-November, December 1981-January 1982, |
| 1982: | February-March, April-May, June-July, August-September, October-November, December 1982-January 1983, |
| 1983: | February-March, April-May, June-July, August-September, October-November, December 1983-January 1984, |
| 1984: | February-March, April-May, June-July, August-September, October-November, December 1984-January 1985, |
| 1985: | February-March, April-May, June-July, August-September, October-November, December 1985-January 1986, |
| 1986: | February-March, April-May, June-July, August-September, October-November, December 1986-January 1987, |
| 1987: | February-March, April-May, June-July, August-September, October-November, December 1987-January 1988, |
| 1988: | February-March, April-May, June-July, August-September, October-November, December 1988-January 1989, |
| 1989: | February-March, April-May, June-July, August-September, October-November, December 1989-January 1990, |
| 1990: | February-March, April-May, June-July, August-September, October-November, December 1990-January 1991, |
| 1991: | February-March, April-May, June-July, August-September, October-November, December 1991-January 1992, |
| 1992: | February-March, April-May, June-July, August-September, October-November, December 1992-January 1993, |
| 1993: | February-March, April-May, June-July, August-September, October-November, December 1993-January 1994, |
| 1994: | February-March, April-May, June-July, August-September, October-November, December 1994-January 1995, |
| 1995: | February-March, April-May, June-July, August-September, October-November, December 1995-January 1996, |
| 1996: | February-March, April-May, June-July, August-September, October-November, December 1996-January 1997, |
| 1997: | February-March, April-May, June-July, August-September, October-November, December 1997-January 1998, |
| 1998: | February-March, April-May, June-July, August-September, October-November, December 1998-January 1999, |
| 1999: | February-March, April-May, June-July, August-September, October-November, December 1999-January 2000, |
| 2000: | February/March, April/May, June/July, August-September, October/November, December 2000/ January 2001, |
| 2001: | February-March, April/May, June/July, August/September, October-November, December 2001/ January 2002, |
| 2002: | February-March, April-May, June-July, August-September, October/November, December 2002/ January 2003, |
| 2003: | February/March, Spring, Summer, Autumn, Winter, |
| 2004: | Spring, Summer, Autumn, Winter, |
| 2005: | Spring, Summer, Autumn, Winter, |
| 2006: | Spring, Summer, Autumn, Winter, |
| 2007: | Spring, Summer, Autumn, Winter, |
| 2008: | Spring, Summer, Autumn, Winter, |
| 2009: | Spring, Summer, Autumn, Winter, |
| 2010: | Spring, Summer, Autumn, Winter, |
| 2011: | Spring, Summer, Autumn, Winter, |
| 2012: | Spring, Summer, Autumn, Winter, |
| 2013: | Spring, Summer, Autumn, Winter, |
| 2014: | Spring, Summer, Autumn, Winter, |
| 2015: | Spring, Summer, Autumn, Winter, |
| 2016: | Spring, Summer, Autumn, Winter, |
| 2017: | Spring, Summer, Autumn, Winter, |
| 2018: | Spring, Summer, Autumn, Winter, |
| 2019: | Spring, Summer, Autumn, Winter, |
| 2020: | Spring, Autumn, Winter, Winter, |
| 2021: | Spring, Summer, Autumn, |
| 2022: | Spring, Summer, Autumn, Winter, |
| 2023: | Spring, Summer, Autumn, Winter, Winter, |
| 2024: | Spring, Summer, Autumn, Winter, |
| 2025: | Spring, Winter, |
| 2026: | Spring, Winter, |
