Military powers by year

This is a list of military powers by year, to be exact, decades. This list is inaccurate because i made it based on my imagination and a few historical facts. Sorry if it sucks. The numbers of countries in each decade is different because i don't know many facts about countries, especially during world war 1. Tell me what you think about this.

1910

1. United Kingdom
2. United States
3.  Japan
4. German Empire
5. Ottoman Empire
6. France
7. Austro-Hungarian Empire
8. Russian Empire
9. China
10. Australia

1920

1. United Kingdom
2. United States
3. Japan
4. France
5. Turkey
6. Russia
7. Australia
8. Germany
9. China
10. Brazil

1930

1. United States
2. United Kingdom
3. Japan
4. Soviet Union
5. Turkey
6. France
7. Germany
8. China
9. Brazil
10. Australia

1940

1. United States
2. United Kingdom
3. Japan
4. Soviet Union
5. Germany
6. Brazil
7. Turkey
8. France
9. Brazil
10. Canada

1950

1. United States
2. Soviet Union
3. China
4. India
5. Japan
6. Turkey
7. United Kingdom
8. France
9. Brazil
10. Iran
11. Pakistan
12. North Korea
13. Mexico
14. Argentina
15. South Korea
16. Chile
17. Australia
18. Canada
19. Israel
20. Thailand

1960

1. United States
2. China
3. Soviet Union
4. India
5. Japan
6. Turkey
7. United Kingdom
8. North Korea
9. France
10. Iran
11. Indonesia
12. Brazil
13. Pakistan
14. Israel
15. Saudi Arabia
16. South Korea
17. Egypt
18. Libya
19. Iraq
20. Argentina

1970

1. United States
2. China
3. India
4. Soviet Union
5. Japan
6. United Kingdom
7. Turkey
8. France
9. Brazil
10. Iran
11. Pakistan
12. Israel
13. Saudi Arabia
14. Indonesia
15. Egypt
16. Canada
17. Australia
18. Iraq
19. Libya
20. North Korea

1980

1. United States
2. China
3. India
4. Soviet Union
5. Japan
6. United Kingdom
7. Turkey
8. France
9. Brazil
10. Iran
11. Pakistan
12. Israel
13. Saudi Arabia
14. North Korea
15. Indonesia
16. Libya
17. Egypt
18. West Germany
19. Iraq
20. Syria

1990

1. United States
2. China
3. Soviet Union
4. India
5. Japan
6. Turkey
7. United Kingdom
8. France
9. North Korea
10. Brazil
11. Iran
12. Pakistan
13. Indonesia
14. Israel
15. Saudi Arabia
16. Germany
17. Egypt
18. South Korea
19. Libya
20. Thailand

2000

1. United States
2. China
3. Russia
4. India
5. Japan
6. United Kingdom
7. France
8. Turkey
9. Brazil
10. Iran
11. North Korea
12. Germany
13. Pakistan
14. South Korea
15. Saudi Arabia
16. Indonesia
17. Israel
18. Thailand
19. Vietnam
20. Libya

2010

1. United States
2. China
3. Russia
4. India
5. United Kingdom
6. Japan
7. Turkey
8. France
9. Brazil
10. Iran
11. Germany
12. North Korea
13. Pakistan
14. Indonesia
15. Saudi Arabia
16. Israel
17. Italy
18. Thailand
19. Vietnam
20. Egypt

2020

1. China
2. United States
3. India
4. Russia
5. Japan
6. Turkey
7. United Kingdom
8. France
9. Iran
10. Brazil
11. Pakistan
12. Indonesia
13. Saudi Arabia
14. North Korea
15. Israel
16. South Korea
17. Thailand
18. Vietnam
19. Argentina
20. Mexico