Superman (1978): 7.4
Superman II (1980): 6.8
Superman III (1983): 5.0
Superman IV: The Quest for Peace (1987): 3.8
Superman Returns (2006): 6.1
Man of Steel (2013): 7.1
Batman v Superman: Dawn of Justice (2016): 6.4
Justice League (2017): 6.0
Superman (2025): 7.1
Man of Tomorrow (2027): –
I personally greatly preferred Man of Steel. The new Superman felt more like a parody.