January
07:24:16, 6 Jan 1981
10:10:30, 13 Jan 1981
07:39:22, 20 Jan 1981
04:20:09, 28 Jan 1981
February
22:14:33, 4 Feb 1981
17:50:05, 11 Feb 1981
22:58:38, 18 Feb 1981
01:16:41, 27 Feb 1981
March
10:32:24, 6 Mar 1981
01:51:45, 13 Mar 1981
15:23:05, 20 Mar 1981
19:36:55, 28 Mar 1981
April
20:21:10, 4 Apr 1981
11:11:41, 11 Apr 1981
07:59:58, 19 Apr 1981
10:16:56, 27 Apr 1981
May
04:21:06, 4 May 1981
22:22:31, 10 May 1981
00:05:06, 19 May 1981
21:02:18, 26 May 1981
June
11:33:55, 2 Jun 1981
11:33:47, 9 Jun 1981
15:06:29, 17 Jun 1981
04:27:03, 25 Jun 1981
July
19:05:25, 1 Jul 1981
02:40:23, 9 Jul 1981
04:41:20, 17 Jul 1981
09:41:56, 24 Jul 1981
03:54:03, 31 Jul 1981
August
19:27:57, 7 Aug 1981
16:39:16, 15 Aug 1981
14:17:39, 22 Aug 1981
14:45:01, 29 Aug 1981
September
13:27:44, 6 Sep 1981
03:11:04, 14 Sep 1981
19:49:34, 20 Sep 1981
04:08:10, 28 Sep 1981
October
07:46:43, 6 Oct 1981
12:51:22, 13 Oct 1981
03:42:38, 20 Oct 1981
20:13:59, 27 Oct 1981
November
01:09:30, 5 Nov 1981
22:28:07, 11 Nov 1981
14:55:23, 18 Nov 1981
14:39:09, 26 Nov 1981
December
16:22:21, 4 Dec 1981
08:42:38, 11 Dec 1981
05:48:18, 18 Dec 1981
10:10:41, 26 Dec 1981