Bitcoin transaction volume in USD is surprisingly flat.

[Nagle]

Bitcoin transaction volume in USD.

Take a look at the last year of Bitcoin transaction volume in USD. There was the China bubble, a big spike and decline, and then the Mt. Gox manipulation/collapse, a huge but very brief spike. Then the transaction volume in USD settled down. For the last six months, it's been surprisingly flat.

What this means isn't entirely clear, but it does indicate that Bitcoin usage is not increasing.

[PhilippeStevens]

Take into consideration price has been going down since that spike, maybe people are less willing to spend at those price and see it as a store of value (well a bad one for now :p)

[mmortal03]

Bitcoin transaction volume in USD.

Take a look at the last year of Bitcoin transaction volume in USD. There was the China bubble, a big spike and decline, and then the Mt. Gox manipulation/collapse, a huge but very brief spike. Then the transaction volume in USD settled down. For the last six months, it's been surprisingly flat.

What this means isn't entirely clear, but it does indicate that Bitcoin usage is not increasing.

People tend to cite number of transactions, not USD transaction volume. I'm sure they'll chime in to state why:

https://blockchain.info/charts/n-transactions-excluding-popular?timespan=1year&showDataPoints=false&daysAverageString=7&show_header=true&scale=0&address=

[Nagle]

Flat for six months.

There's the China spike, and the Mt. Gox collapse spike.  Then 6 months of flat.  It's interesting that volume in USD has remained roughly constant as the price has varied over a 2:1 range.

[medUSA]

Transacted volume is the amount of coins moved between addresses. I do not believe it is very useful in estimating "use". The spikes during high bitcoin prices are people moving coins in and out of exchanges and probably exchanges moving coins to and from cold wallets.

There are certainly more things you can buy with bitcoin now, compared with 12 months ago.