Looking in history, June 3, 7am CET it was. Just 6am UTC. Txs were below 10 per hour  these hours, i was looking for NEMstake price in NXT wallet and i noticed this number. This means probably that most of NXTers are Americans. However we are a bit off topic. Now im reading the NXT topic and there is said that the NXT fee is 1 NXT per transaction. There is the key - the transactions are enormously expensive.