| Year | Start | D1 Winners time | Dal Josephat flow - m3/s | Annual maximum flow date | Annual maximum flow - m3/s |
|---|---|---|---|---|---|
| 1962 | 25 Jul | 4:50:08 | 342.65 | 25 Jun | 551.08 |
| 1963 | 24 Jul | 5:46:35 | 72.6 | 9 Aug | 459.33 |
| 1964 | 15 Jul | 6:29:57 | 7.59 | 11 Aug | 216.09 |
| 1965 | 21 Jul | 5:35:59 | 11.48 | 27 Mei | 366.1 |
| 1966 | 13 Jul | 4:54:14 | 104.99 | 1 Jul | 241.18 |
| 1967 | 12 Jul | 5:38:44 | 5.61 | 10 Jun | 303.35 |
| 1968 | 10 Jul | 5:05:45 | 10.24 | 26 Jul | 313.09 |
| 1969 | 2 Jul | 5:12:16 | 8.47 | 17 Jul | 159.39 |
| 1970 | 8 Jul | 4:47:48 | 13.66 | 24 Jun | 226.8 |
| 1971 | 14 Jul | 5:15:28 | 6 | 3 Jul | 310.55 |
| 1972 | 5 Jul | 5:12:07 | 3.36 | 10 Mei | 139.57 |
| 1973 | 4 Jul | 4:11:24 | 341.34 | 15 Jul | 358.85 |
| 1974 | 10 Jul | 4:49:29 | 5.02 | 20 Aug | 257.7 |
| 1975 | 9 Jul | 4:00:15 | 64.74 | 20 Jul | 445.98 |
| 1976 | 7 Jul | 4:40:30 | 12.12 | 25 Jul | 628.37 |
| 1977 | 6 Jul | 3:39:23 | 158.31 | 20 Aug | 613.89 |
| 1978 | 12 Jul | 5:16:27 | 1.44 | 19 Aug | 188.55 |
| 1979 | 11 Jul | 4:41:24 | 7.12 | 10 Jun | 397.28 |
| 1980 | 9 Jul | 4:39:26 | 6.29 | 26 Jun | 220.82 |
| 1981 | 15 Jul | 4:15:13 | 16.28 | 12 Jul | 255.36 |
| 1982 | 14 Jul | 4:44:44 | 4.39 | 10 Aug | 247.94 |
| 1983 | 13 Jul | 4:23:47 | 18.97 | 27 Jun | 445.07 |
| 1984 | 18 Jul | 4:18:40 | 14.97 | 16 Mei | 526.36 |
| 1985 | 10 Jul | 4:07:56 | 35.54 | 6 Jul | 619.22 |
| 1986 | 9 Jul | 3:59:40 | 28.77 | 5 Aug | 351.2 |
| 1987 | 15 Jul | 4:34:30 | 6.51 | 11 Aug | 278.32 |
| 1988 | 13 Jul | 4:13:34 | 19.18 | 31 Aug | 275.45 |
| 1989 | 12 Jul | 4:00:10 | 25 | 3 Sep | 314.29 |
| 1990 | 11 Jul | 3:46:31 | 45 | 9 Jul | 445.48 |
| 1991 | 10 Jul | 3:57:36 | 25.5 | 24 Jun | 622.85 |
| 1992 | 15 Jul | 3:34:33 | 138.2 | 2 Jun | 622.62 |
| 1993 | 14 Jul | 3:39:20 | 83.95 | 10 Jul | 678.65 |
| 1994 | 13 Jul | 4:19:16 | 12 | 23 Jul | 555.2 |
| 1995 | 5 Jul | 4:30:05 | 6.9 | 24 Okt | 259.53 |
| 1996 | 10 Jul | 4:03:14 | 27.3 | 41074 | 575.71 |
| 1997 | 9 Jul | 4:16:39 | 9.8 | 41087 | 625.08 |
| 1998 | 8 Jul | 4:03:18 | 32.7 | 16 Jul | 442.22 |
| 1999 | 14 Jul | 4:23:47 | 8.4 | 1 Jul | 475.93 |
| 2000 | 12 Jul | 4:48:56 | 4 | 30 Mei | 290.49 |
| 2001 | 4 Jul | 3:38:42 | 140.08 | 20 Jul | 514.81 |
| 2002 | 3 Jul | 4:11:49 | 13.1 | 29 Jul | 420.7 |
| 2003 | 2 Jul | 5:10:58 | 1.6 | 19 Aug | 116.24 |
| 2004 | 14 Jul | 5:11:54 | 2.1 | 8 Aug | 421.03 |
| 2005 | 13 Jul | 4:45:54 | 4.23 | 20 Jul | 596.28 |
| 2006 | 12 Jul | 4:29:50 | 8.05 | 13 Jun | 318.21 |
| 2007 | 11 Jul | 4:33:28 | 7.2 | 20 Mei | 567.2214 |
| 2008 | 9 Jul | 3:45:51 | 90 | 40421 | 386.77 |
| 2009 | 15 Jul | 3:53:11 | 49.3 | 40372 | 500.33 |
| 2010 | 14 Jul | 4:21:15 | 12.93 | 14 Mei | 167.05 |
| 2011 | 13 Jul | 4:10:49 | 11.22 | 19 Junie | 89.85 |
| 2012 | 11 Jul | 3:53:18 | 41.92 | 15 Aug | 279.42 |
| 2013 | 10 Jul | 4:15:06 | 14.28 | 29 Aug | 713.35 |
| 2014 | 16 Jul | 4:06:53 | 17.86 | 4 Jun | 289.87 |
| 2015 | 15 Jul | 4:53:20 | 3 | 18 Jul | 386.27 |
| 2016 | 13 Jul | 4:29:00 | 5.56 | 21 Jul | 157.5 |
| 2017 | 12 Jul | 3:41:19* Paarl-Hermon | 1,61 | 22 Jun | 28.85 |
| 2018 | 11 Jul | 4:45:53 | 6,45 | 18 Jun | 67,95 |
| 2019 | 3 July | 3:52:42 | 114.00 |
