Could someone help me to understand BTC-E APÏ TICKER ? Simple question

[mah87]

Here is the ticker: https://btc-e.com/api/2/btc_usd/ticker
My question is for what period (length) of time the high and low are considered. Same question about the volume.

"
high [number]   84.9
low [number]   82.5
avg [number]   83.7
vol [number]   130722.71386
vol_cur [number]   1560.30334
last [number]   84.202
buy [number]   84.202
sell [number]   84.139
updated [number]   1374475916
server_time [number]   1374475916
"

Thanks a lot for your help.

[kripto]

Anyone?