| Covers listed |
|
| 1984: | May, May, June, August, September, November, December, |
| 1985: | January, February, April, July, August, October, November, December, |
| 1986: | February, May, June, August, November, December, |
| 1987: | February, March, April, May, June, August, September, December, Annual, |
| 1988: | January, February, March, April, May, June, July, August, September, |
| 1989: | February, March, May, June, September, |
| 1990: | January, February, April, June, July, August, September, October, November, |
| 1991: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1992: | January, February, March, April, May, June, July, August, September, |
| 1993: | January, February, March, April, May, June, July, August, September, October, November, December, a No , |
| 1994: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1995: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1996: | January, February, March, April, May, June, June, July, August, September, October, November, December, Annual, |
| 1997: | January, March, April, May, June, August, 15 August, 1 September, 16 September, 1 October, 16 October, 1 November, 30 November, Annual, 1 December, 16 December, |
| 1998: | 16 January, 1 February, 16 February, 1 March, 16 March, 15 April, 30 April, 1 May, 16 May, 1 June, 15 July, 31 July, 15 August, 31 August, 15 September, 30 September, 15 October, 31 October, 15 November, 30 November, 15 December, 31 December, |
| 1999: | 15 January, 31 January, 15 February, 28 February, March, April, May, June, July, August, September, October, November, December, |
| 2000: | January, February, March, April, May, June, July, August, September, October, |
| 2001: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2002: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2003: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2004: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2005: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2006: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2007: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2008: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2009: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2010: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 2011: | January, February, March, April, May, June, November, |
