I always get confused by what is considered a "household". In my case, I'm single, and have two housemates who are unrelated, and rent from me. So would the three of us be considered one "household", or would we be considered three separate "households"? I guess if it went by income tax returns, we would be three separate households, but if it went by address, it would be just one?
Anyway, looks like I hit 90.49% for all surveyed (18-100) and 90.82% for my age group (44).
As for whether your standard of living would be better in the top 5%, versus the top 10%, I'd have to say YES!! I put in my $995K of investible assets as my NW, and that got the 90.82%. $2M would put me at 94.67%. For me, that 5% difference in ranking would be the difference between working and retired! Interestingly, putting in $2.8M only gets you to 94.89%, $2.9M gets you to 95.86%, and $3M gets you to 96.7%.
But, the data only pulls from 111 households where the head is age 44, so I guess you can't expect it to be totally accurate. To hit that 99% threshold, in my age bracket, you have to have about $5.5M
I could definitely see a much higher standard of living with $5.5M socked away, versus $2M, or $995K.
I know I'd rank even higher if I put in my NW rather than just investible assets, but I figure things like a house and cars aren't something you can just convert to cash very easily, so I prefer not to consider them.