What are the three values in the csv graph of price history? I wanted to look up the price history of bitcoin on different exchanges (in order to compare them in one graph) and I found this site with the data organized in csv type files. What do the three values correspond to?

For example in coinbase BTC/EUR the first few lines are 


  1429753354,300.000000000000,0.010000000000
  1429766376,200.000000000000,0.010000000000
  1429831674,220.000000000000,0.010000000000
  1429841387,220.000000000000,0.010000000000
  1430156722,205.270000000000,0.035300000000
  1430156722,205.270000000000,0.064700000000
  1430156880,205.330000000000,0.100000000000
  1430159153,205.340000000000,0.010000000000
  1430177802,209.470000000000,0.014260000000
  1430192991,209.190000000000,0.022200000000
  1430192991,209.110000000000,0.048500000000
  1430192991,209.100000000000,0.029300000000
  1430193080,209.530000000000,0.099000000000
  1430220205,209.030000000000,0.100000000000
  1430252864,204.480000000000,0.010000000000
  1430261840,204.900000000000,0.356800000000
  1430261840,204.870000000000,0.167600000000
  1430261840,204.670000000000,0.156200000000
  1430261840,204.660000000000,0.979400000000
  1430263167,205.490000000000,0.010000000000
Unix Time, Price, Amount of Value in the Order Book at Corresponding price.     

So the first line in your example translates to Thursday, April 23, 2015 GMT time, there was an order for 0.01 bitcoins at the price of $300.