The table below gives the numbers (in thousand) of different types of geysers sold by a company in six consecutive years.

Year	Types
	A	B	C	D	E
2007	75	122	103	98	95
2008	100	102	103	112	102
2009	105	108	112	109	108
2010	100	189	123	102	122
2011	95	123	102	124	124
2012	85	145	134	134	145

What is the difference in the number of type B geysers sold in 2010 and 2012 ?