diff --git a/History.md b/History.md
index f37fc32..93456af 100644
--- a/History.md
+++ b/History.md
@@ -1,33 +1,39 @@
 # History of the ECSC competition
 ## ECSC Ranking since 2012
-unpublished rankings are marked with 'x'
+unpublished rankings are marked with 'x'  
+countries not attending are marked with 'dnf'  
+countries organizing and therefore not playing are marked with 'organizer'  
+countries participating as guest and thus not ranked are marked with 'guest (ranking they would have had)'  
 
-|                | 2012  | 2013  | 2014  | 2015  | 2016   | 2017   | 2018   | 2019   | 2020 |
-|----------------|-------|-------|-------|-------|--------|--------|--------|--------|------|
-| Austria        | 1     | 2     | 1     | 1     | x      | x      | 10     | 3      |      |
-| Switzerland    |       | 1     | 3     | 3     | x      | x      | 14     | 17     |      |
-| Germany        |       |       | 2     | 2     | 3      | x      | 1      | 4      |      |
-| UK             |       |       |       | 6     | x      | 3      | 3      | 5      |      |
-| Spain          |       |       |       | 4     | 1      | 1      | 11     | 13     |      |
-| Romania        |       |       |       | 5     | 2      | 2      | 9      | 1      |      |
-| Greece         |       |       |       |       | x      | x      | 5      | 12     |      |
-| Ireland        |       |       |       |       | x      | x      | dnf    | 15     |      |
-| Liechtenstein  |       |       |       |       | x      | x      | 16     | 19     |      |
-| Estonia        |       |       |       |       | x      | 5      | 7      | 8      |      |
-| Italy          |       |       |       |       |        | 3      | 6      | 2      |      |
-| Norway         |       |       |       |       |        | 4      | 12     | 14     |      |
-| Denmark        |       |       |       |       |        | x      | 13     | 9      |      |
-| Czech Republic |       |       |       |       |        | x      | 15     | 11     |      |
-| Cyprus         |       |       |       |       |        | 5      | 17     | 18     |      |
-| France         |       |       |       |       |        |        | 2      | 7      |      |
-| Poland         |       |       |       |       |        |        | 4      | 6      |      |
-| Belgium        |       |       |       |       |        |        | 8      | dnf    |      |
-| Luxembourg     |       |       |       |       |        |        | dnf    | 20     |      |
-| Netherlands    |       |       |       |       |        |        |        | 16     |      |
-| Portugal       |       |       |       |       |        |        |        | 10     |      |
-| Canada         |       |       |       |       |        |        |        |        |      |
-|                |       |       |       |       |        |        |        |        |      |
-| **Total**      | **1** | **2** | **3** | **6** | **10** | **15** | **17** | **20** |      |
+|                | 2012  | 2013  | 2014  | 2015  | 2016   | 2017   | 2018   | 2019   | 2020      | 2021       |
+|----------------|-------|-------|-------|-------|--------|--------|--------|--------|-----------|------------|
+| Austria        | 1     | 2     | 1     | 1     | x      | x      | 10     | 3      | cancelled | 10         |
+| Switzerland    |       | 1     | 3     | 3     | x      | x      | 14     | 17     | cancelled | 11         |
+| Germany        |       |       | 2     | 2     | 3      | x      | 1      | 4      | cancelled | 1          |
+| UK             |       |       |       | 6     | x      | 3      | 3      | 5      | cancelled | dnf        |
+| Spain          |       |       |       | 4     | 1      | 1      | 11     | 13     | cancelled | 12         |
+| Romania        |       |       |       | 5     | 2      | 2      | 9      | 1      | cancelled | 14         |
+| Greece         |       |       |       |       | x      | x      | 5      | 12     | cancelled | 13         |
+| Ireland        |       |       |       |       | x      | x      | dnf    | 15     | cancelled | 16         |
+| Liechtenstein  |       |       |       |       | x      | x      | 16     | 19     | cancelled | dnf        |
+| Estonia        |       |       |       |       | x      | 5      | 7      | 8      | cancelled | dnf        |
+| Italy          |       |       |       |       |        | 3      | 6      | 2      | cancelled | 3          |
+| Norway         |       |       |       |       |        | 4      | 12     | 14     | cancelled | dnf        |
+| Denmark        |       |       |       |       |        | x      | 13     | 9      | cancelled | 5          |
+| Czech Republic |       |       |       |       |        | x      | 15     | 11     | cancelled | organizer  |
+| Cyprus         |       |       |       |       |        | 5      | 17     | 18     | cancelled | 6          |
+| France         |       |       |       |       |        |        | 2      | 7      | cancelled | 4          |
+| Poland         |       |       |       |       |        |        | 4      | 6      | cancelled | 2          |
+| Belgium        |       |       |       |       |        |        | 8      | dnf    | cancelled | 8          |
+| Luxembourg     |       |       |       |       |        |        | dnf    | 20     | cancelled | dnf        |
+| Netherlands    |       |       |       |       |        |        |        | 16     | cancelled | 9          |
+| Portugal       |       |       |       |       |        |        |        | 10     | cancelled | 7          |
+| Canada         |       |       |       |       |        |        |        |        | cancelled | guest (18) |
+| Slovenia       |       |       |       |       |        |        |        |        | cancelled | 15         |
+| Malta          |       |       |       |       |        |        |        |        | cancelled | 17         |
+| Slovakia       |       |       |       |       |        |        |        |        | cancelled | guest (15) |
+|                |       |       |       |       |        |        |        |        |           |            |
+| **Total**      | **1** | **2** | **3** | **6** | **10** | **15** | **17** | **20** | **0**     | **19**     |
 
 
 
@@ -42,6 +48,6 @@ unpublished rankings are marked with 'x'
 | 2017 | Spain          | Malaga      | Spain       |
 | 2018 | UK             | London      | Germany     |
 | 2019 | Romania        | Bucharest   | Romania     |
-| 2020 | Austria        | Vienna      | -           |
-| 2021 | Czech Republic | N/A         | -           |
+| 2020 | Austria        | Vienna      | COVID-19    |
+| 2021 | Czech Republic | Prague      | Germany     |
 | 2022 | Norway         | N/A         | -           |