Which year has witnessed highest absolute increase in total production of minerals and metals?

The year wise total production of minerals and metals is as shown below:-
2005 = 69+91+71+15+100 = 346
2006 = 75+88+75+18+120 = 376
2007 = 81+97+79+21+102 = 380
2008 = 98+107+88+25+131 = 449
2009 = 93+110+92+24+143 = 462
2010 = 99+116+97+20+154 = 486
2011 = 105+122+103+125+103 = 518
The y-o-y increase in the total production of minerals and metals is as shown below:-
2006 = 376-346 = 30
2007 = 380-376 = 4
2008 = 449-380 = 69
2009 = 462-449 = 13
2010 = 486-462 = 24
2011 = 518-486 = 32
Thus, year 2008 has witnessed highest absolute increase in total production of minerals and metals.
Hence, option B is the correct answer.