Fixed the table so it was a bit more readable:
Size______Seq Write_Seq Read_Seq 50%__Rnd Wr___Rnd Read
512b_____6.9_______35_______16.8______15_______35
4K_______99_______174______147_______108______174
16k______222______223______300_______222______222
32K______224______208______307_______222______210