I was thinking that it's been a long time since I heard a national anthem that's not on your list. When I was younger (40-50 years ago), the American TV station that covered the Olympics generally showed the medal ceremonies for the various competitions, so we got to hear the anthems of the nations that were strong in those sports -- yes, the US, but also Norway, Romania, the Soviet Union, Japan, and so on. These days, I only hear the US's anthem in Olympics coverage. And, sure, yay for the home team, but I like hearing the other anthems too.
Of the ones you listed, the only one I wasn't familiar with was "Flower of Scotland", so I looked it up. "But we can still rise now and be the nation again that stood against him, proud Edward's army, and sent him homeward tae think again." Interestingly defiant!
