I went to a very smart girls boarding school in the 80s. 70% of the girls were called Caroline, Helen, Sarah, Kate, Clare, Julia, Victoria, Amanda, Alexandra, Jane, Rebecca or Lucy.
20% were called names like Natasha, Iona, Isla, Tara, Melissa, Diana, Felicity, Jessica, Susannah.
5% were called silly nicknames like Flossie, Bunty, Santa, Ferdy, Lully, Kitty.
3% were called names that the other 98% derided as being lower class including Nicole, Claire (the 'I' made all the difference!), Wendy, Lynda, Dawn, Karen, Alison, Tina and Natalie. There were no Sharons, Traceys or Lorraines and they simply wouldn't have survived the abuse if they were.
2% were foreign and usually prefixed with the title "Princess" 
In hindsight poor Dawn and Karen had a completely different school experience than they would have done if they were called Jane or Helen. Not helped by the fact that the kitchen maids were also called Dawn and Karen. Awful, really.