How much did your income increase from age 30 to 40? I was just looking at mine (doing tax stuff) and my income at 30 was $63,000 and my income at 40 is $143,000. I mommy tracked hard for about 6 years while I had 3 kids and then started moving up the management chain.
My husbands income has gone from $175,000 at 30 to $510,000 at 40.