121 instances from 9 years 2025 - 2 instances Jan Feb Mar 24 Apr May Jun Jul Aug Sep 29 Oct Nov Dec 2024 - 7 instances Jan Feb Mar 26 Apr May Jun Jul Aug Sep 26 Oct 9 Nov 28 8 Dec 27 2 2023 - 3 instances Jan Feb Mar 17 Apr May Jun Jul 31 Aug Sep 23 Oct Nov Dec 2022 - 8 instances Jan 15 Feb 1 Mar 14 1 Apr 22 May Jun Jul 21 Aug Sep 16 Oct 27 Nov Dec 2021 - 35 instances Jan 29 22 18 15 8 1 Feb 26 19 12 5 1 Mar 26 19 15 12 5 4 1 Apr 1 May 1 Jun 18 1 Jul 1 Aug 28 21 14 1 Sep 25 18 14 11 4 1 Oct 20 1 Nov Dec 2020 - 54 instances Jan 19 Feb 14 Mar 31 Apr May 29 22 15 8 5 4 3 2 Jun 26 19 17 12 5 1 Jul 31 24 20 17 14 10 3 2 Aug 28 21 14 7 2 Sep 25 18 15 14 11 4 2 Oct 30 23 19 16 9 2 Nov 27 20 13 9 6 2 Dec 25 18 11 4 1 2019 - 9 instances Jan 15 Feb 1 Mar 26 Apr 9 1 May Jun 15 Jul 8 Aug 8 Sep Oct 16 Nov Dec 2018 - 1 instance Jan Feb 5 Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2017 - 2 instances Jan Feb 1 Mar Apr May Jun Jul Aug 8 Sep Oct Nov Dec