What type of data do these numbers represent? Comment on the data

link https://finance.yahoo.com/quote/GOOG/history?period1=1262304000&period2=1293753600&interval=1mo&filter=history&frequency=1mo&includeAdjustedClose=true

Summary Conversations Statistics Historical Data GOOG - Alphabet Inc. NasdaqGs - NasdaqGs Real Time Price. Currency in USD Time Period: Jan 01, 2010 - Dec 31, 2010 v Show: Historical Prices v Frequency: Monthly v Apply Currency in USD , Download Date Open High Low Close Adj Close Volume 1/1/2010 312.304 313.58 261.824 263.981 263.981 1.8E+08 2/1/2010 266.302 272.728 259.029 262.416 262.416 1E+08 3/1/2010 263.612 293.042 262.885 282.501 282.501 1.7E+08 4/1/2010 284.608 297.804 259.542 261.868 261.868 1.5E+08 5/1/2010 262.267 265.465 229.141 241.908 241.908 1.6E+08 6/1/2010 239.318 253.674 221.53 221.644 221.644 1.2E+08 7/1/2010 221.814 247.821 216.005 241.52 241.52 1.4E+08 8/1/2010 243.582 253.35 222.989 224.17 224.17 1.1E+08 9/1/2010 226.641 267.423 225.405 261.913 261.913 1.2E+08 #### 264.01 311.204 258.456 305.704 305.704 1.6E+08 #### 306.715 314.247 275.622 276.817 276.817 1.2E+08 #### 280.449 302.367 280.15 295.876 295.876 8.5E+07 Close price adjusted for splits.** Adjusted close price adjusted for both dividends and splits