Our Number Puzzle: Lost in Space!

Hey there buddies,

It's time for our weekly puzzle!
And today, we've got astronauts Stig and Sten with their space challenge!
On their cyber-screen, you'll see they've got twelve numbers between 37 and 97. The numbers increase by four each time.
Can you work out how many numbers are missing and which numbers they are?
All you need to do to take part is reply to THIS blog with your answer. The first person to come back with the correct number of missing numbers will get an extra special mention next week!
The person who comes back with what those numbers actually are will get a mention too!

Happy Puzzling!