ARB retention fees
Data graph 1																					RP02									Rough workings
Year	84	85	86	87	88	89	90	91	92	93	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09	10
Annual Retention Fee	£10.00	£10.00	£13.00	£13.00	£19.00	£19.00	£19.00	£19.00	£30.00	£30.00	£30.00	£30.00	£30.00	£30.00	£30.00	£50.00	£55.00	£55.00	£55.00	£65.00	£70.00	£74.50	£7,605.00	£78.00	£78.00	£86.00	£86.00			645%	35%	30%
Adjusted RPI (1984 = 10)	10.37653	10.98949	11.31932	2.988908	12.48214	13.42636	14.88875	15.49904	16.05175	16.33962	16.69658	17.34142	17.70989	18.34321	18.93047	19.13774	19.77106	20.10499	20.45044	21.01467	21.6595	22.23525	23.04129	23.95096	25.14851	24.79155	0
																														0.67	0.10	0.00	0.00	0.18	0.08	0.06		18%
RPI	355.5	376.5	387.8	102.4	108.4	116.6	129.3	134.6	139.4	141.9	145	150.6	153.8	159.3	164.4	166.2	171.7	174.6	177.6	182.5	188.1	193.1	200.1	208	218.4	215.3		(RPI to September)
						100								1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
												Data graph 2		£30.00	£30.00	£50.00	£55.00	£55.00	£55.00	£65.00	£70.00	£74.50	£76.50	£78.00	£78.00	£86.00	£86.00
													30.0000	31.0728	32.0676	32.4187	33.4915	34.0572	34.6424	35.5982	36.6905	37.6658	39.0312	40.5722	42.6008	41.9961	0.0000			0.0109	0.0331	0.0169	0.0172	0.0276	0.0307	0.0266		3%
															100
													1.693968
											For graph	Year		1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
												Retention fee		£30.00	£30.00	£50.00	£55.00	£55.00	£55.00	£65.00	£70.00	£74.50	£76.50	£78.00	£78.00	£86.00	£86.00
												Prev yr adjusted RPI		30.0000	31.0728	32.0676	32.4187	33.4915	34.0572	34.6424	35.5982	36.6905	37.6658	39.0312	40.5722	42.6008	41.9961
															0%	67%	10%	0%	0%	18%	8%	6%							14%
															3%	1%	3%	2%	2%	3%	3%	3%							2%