1. Physical formats (Cassette, CD, and Vinyl) peaked in the late 1990s and have been in decline since then, with Vinyl being the exception due to a resurgence in interest among collectors. 2. Digital downloads (Downloads) reached their peak around 2009-2010 and have been steadily declining ever since. 3. Streaming/Subscription services have seen remarkable growth since the mid-2010s and have become the dominant way people consume music. 4. The "Other" category has shown some fluctuations over the years but has generally seen growth, possibly due to increased revenue from live performances and merchandise.