How old is actress Ryan Newman's sister?

Jessica Newman turned 16 on June 10, 2011. Her DOB is June 10, 1995.

Jessica Newman is about 3 years older than her sister Ryan Newman.

Here is how I know this:

In this YouTube video, Ryan Newman says that her sister is turning 16 in June:

RYAN NEWMAN (Zeke and Luther) at her 13th Birthday Party!

Uploaded by PopstarMagazine on Apr 29, 2011

Then on June 10, 2011, Ryan Newman (ryrynewman on twitter) tweeted this:

"Another beautiful day in Rome:) Happy 16th birthday to my sister Jessica today. What an amazing place to celebrate!!"