December 2017: probably about 700 kilometres or so. Midway thorough December 2017 my then bicycle computer decided to fall off my bike and disappear. So I bought another one.
January 2018: 596.40 km
February 2018: 693.26 km
March 2018: 907.23 km
April 2018: 1019.7 km
May 2018: 1014.0 km
June 2018: 701.77 km
July 2018: 720.35 km
August 2018: 722.72 km
September 2018: 503.47 km (bicycle was in the repair shop for a while. For exercise I walked alot (sic))
October 2018: 806.25 km
November 2018: old bicycle 320.00 + new bicycle 599.46 = 919.46 km
December 2018: 745.39 km
January 2019: 1102.5 km
February 2019: 809.13 km
March 2019: 882.13 km
April 2019: new bicycle 733.71 + old bicycle 57.71 = 791.42 km
May 2019: 747.43 km
June 2019: 833.67 km
July 2019: 871.29 km
August 2019: 911.61 km
September 2019: 829.37 km
October 2019: 953.14 km
November 2019: 801.61 km
December 2019: 1005.6 km
January 2020: 1002.7 km
February 2020: 832.10 km
March 2020: 646.77 km
April 2020: 1005.1 km
May 2020: 1046.5 km
Jun 2020: 716.50 km
Jul 2020: probably ~750 km - having problems with new GPS-enabled bicycle computer - it tells me what altitude I'm at and whether I'm going uphill or downhill... but not what my monthly kilometres are.
August 2020: 725.78 km
September 2020: 649.35 km
October 2020: 816.54 km
November 2020: 849.42 km
December 2020: 752.35 km... 1,000 km for January 2021, maybe?
January 2021: 823.67 km - 1,000 km for February 2021, maybe?
February 2021: 680.7 km - things happen - a week-long new Covid-19 lockdown in this case, get in the way cycling long kilometres.
May 2021: 705.77 km - late May 2021 new Covid-19 lockdown may be extended into Jun 2021
Jun 2021: 694 km. Target 1,000 km for July 2021, maybe?