Ezme, I am 5'9"! My husband is 6'. Averages are not very telling because it doesn't mean lots of women are 5'4", it means some are, lots are less than 5'4" and lots are more than 5'4", and the average of them is 5'4". I know lots of tall people, as well, generally the women I know are around 5'6/7" and apparently people are getting taller. But I also know lots of small people - one of my aunts is 4'11"!
Average 5'4'' for women?! you joking?! I'm 14 and im 5ft7.. loads of my friends are taller than me, none are 5'4'' or shorter. Infact, only a few people in my form at school are shorter than 5'4'' and we havent stopped growing yet!!