My 2012 makes the same noise, only once it has warmed up however.
Cold start is quiet, once the second bar on temp gauge shows it starts the ticking. Maybe not quite as bad as yours, and only at idle. As soon as the revs rise 150-200 above idle no ticking noise.
Interestingly I can not hear it with my helmet on, only with it removed.
My bike has 9000km on the clock now and I have no idea how long it has been making the noise as usually I start the bike and while it's warming up I am putting my helmet on.
A well trusted Suzuki mechanic told me no problem.