Is my son advanced?

just wondering what the average is, my son picked his head up at 2 weeks, old started holding his head up at 1 1/2 months, rolled on his back at two months, on his belly at almost 3 months. he crawled at 4 1/2 months, pulled up 5 months, walked at barely 10 months. Now that he is 15 months, he knows how to talk on the phone, he says "is that?", "dog", "stop" "yeah" and "hot". He can throw a ball back and forth, brush his hair, open and close the cd drive on the computer, sweep the floor with a toy broom, feed himself, dance in circles, color with a crayon, he can point to a nose when asked, and he's climbing all over everything. he also tries to wipe up what he spills with a paper towel or baby wipe. Is this the normal rate for an infant because he seems to be ahead of other babies his age that I have seen. He has always done things quickly.