Output format: left = day of month, right = number of targets observed ---------- 2008 ---------- July 14 3 15 4 October 6 4 7 1 ---------- 2009 ---------- April 5 1 ---------- 2010 ---------- December 18 4 19 1 ---------- 2012 ---------- October 30 2 December 1 1 ---------- 2013 ---------- February 15 1 16 1 June 21 1 September 25 1 ---------- 2014 ---------- January 15 2 16 2 21 1 March 7 1 8 4 April 19 1 20 3 October 5 4 6 5 7 6 November 7 7 8 3 ---------- 2015 ---------- January 10 2 11 5 February 7 2 March 2 1 3 2 April 1 1 May 2 4 June 30 6 July 16 6 September 26 1 28 1 November 27 6 28 3 29 10 ---------- 2016 ---------- February 18 5 19 2 20 5 May 20 1 December 12 5 15 7 16 3 17 5 ---------- 2017 ---------- April 13 8 May 15 5 June 6 5 July 14 3 September 5 9 October 28 3 December 6 2 ---------- 2018 ---------- January 26 8 31 1 February March 7 3 27 13 April 1 3 2 3 May 26 5 June 26 9 July 24 7 September 24 8 October 21 4 November 3 1 4 2 December 21 9 22 5 ---------- 2019 ---------- January 18 5 February 18 8 March 14 1 18 4 May 16 4 17 3 18 2 July ---- long-term Vrijmoet program 12 3 14 16 15 65 16 57 August 12 36 14 2 October 16 5 November 9 63 10 37 December 12 31 13 37 14 15 ---------- 2020 ---------- January 7 22 February 10 51 12 17 March 13 14 14 2 October 8 8 27 19 29 2 November 1 49 December 3 18 4 18 29 9 30 11 ---------- 2021 ---------- January 28 4 29 17 February 26 5 27 37 28 12 March 1 11