10 most popular social networks with their demographic break up

The above data shows the top 10 social networks with their demographic break up
In linkedin" the most active user groups are in the age group 24 to 44 age group. This   age group makes up 43% of  total LinkedIn users.
Similarly in Facebook "the most active age group consists of  25 to 44 year olds. The age group of 55-65 form 18% of total Facebook user base