Dollar amount has been stable for the last 90 days. Before that would have to take into the precipitous drop of BTC to its current levels.
I wouldn't be surprised people are still pricing crypto in dollars, it still has a few years before a mainstream breakthrough. In the meantime, Nxt picks up core devs and third party devs still keep building (Jones' wallet aimed a noobies, Slothbags decentralised app store and DNS system (decentralised internet), JL777 Supernet projects, multiple new wallets...) and NRS 1.5 being tested.
[speculation] It will be quiet for a few more months yet. A big BTC washout of capitulation will happen before new money flows into crypto. [/speculation]