I don't think it's any higher or lower than any other generations.
I read a study on rock stars once. The lifestyle - sex, drugs, booze - all much higher in rock n roll circles.
Plus the endless ups and downs of hits and misses, long tours away from home, banal media, endless up, down, in and out, moving here and there, no time for oneself, the pressure to perform and/or being away from loved ones, plus having 'your biggest fans' tell you they love you all the time, but in reality having no one around you a lot of the time. The pressure of writing a hit or living off past glories. It's all triggers for black holes.
As much as being a rock star would be cool, I reckon the pitfalls and lifestyle would be terrible.