50 words by 16 months?

I read today that girls typically know and can speak 50 words by the 16th months of life (boys about 30 words). Granted every kid is different and they all develop at different paces, but we’re no where NEAR 50 words. Let’s count them…

1 – Fish
2 – Juice
3 – Uh-oh
4 – Dad
5 – Ball
6 – mas/more
7 – mama (sometimes)
8 – that
9 – this
10 – button (as in belly button)
11 – boo (as in the kitty’s name)
12 – boo (as in when we play peek-a-boo)
13 – mine (I think… )
14 – shoe
15 – read
16 – duck
17 – moo (as in what a cow says)
18 – baa (as in what a sheep says)
19 – sheep
20 – Yes
21 – yeah

Well… that’s all I can come up with at this point and that’s NO WHERE near 50! Wonder what gives… Hmmm….