If your class has had its championships but your attendance is not shown then please email me the figure and I will update the database. You can sort the data by each of the years shown, by alphabetical order or by number of people at an event.

The figure is the number of boats to start at least one race at a championship. For combined championships (such as Worlds and nationals), only the UK boats are counted. For open national championships all competitors are included.

Pos	Class Name sort	2001 Sort by	2002 Sort by	2003 Sort by	2004 Sort by	2005 Sort by	2006 Sort by	2007 Sort by	2008 Sort by	2009 Sort by	2010 Sort by	2011 Sort by	11/10 comparison	01-2011 average
1	Optimist	270	294	302	294	335	361	379	447	352	490	448	-42	361
2	Topper	188	218	229	246	278	289	289	307	345	348	324	-24	278
3	RS200	86	80	101	91	101	130	126	133	128	80	158	+78	110
4	Laser Radial	84	110	116	130	197	121	142	155	90	123	145	+22	128
5	XOD	74	72	69	79	79	73	71	80	79	88	145	+57	82
6	RS Feva			50	24	66	85	65	80	72	115	102	-13	73
7	Solo	63	76	72	63	79	79	90	82	70	78	95	+17	77
8	Contender	52	50	41	50	56	50	50	40	53	34	95	+61	51
9	Flying Fifteen	43	72	23	46	55	62	36	52	49	63	92	+29	53
10	RS Tera								28	39	72	86	+14	56
11	RS400	106	86	62	72	57	60	59	39	66	60	84	+24	68
12	Laser	80	92	85	108	104	86	88	88	35	47	81	+34	81
13	Cadet	119	122	129	112	106	118	162	100	92	82	80	-2	111
14	Phantom	51	53	65	73	72	78	70	45	62	81	79	-2	66
15	Dart 18	144	74	70	39	73	71	61	55	57	62	78	+16	71
16	Mirror	58	72	83	69	91	112	71	74	80	37	77	+40	74
17	Laser 4.7	27	37	40	61	59	35	51	55	33	37	71	+34	46
18	One Metre	66	71	73	68	44	57	56	57	62	70	69	-1	63
19	Scorpion	62	62	66	66	63	63	56	52	51	81	63	-18	62
20	Squib	56	85	81	59	82	89	97	81	108	69	61	-8	78
21	Merlin Rocket	72	54	63	65	82	62	79	76	57	65	59	-6	66
22	RS800	67	62	50	70	51	53	50	41	37	39	59	+20	52
23	Sprint 15	53	66	86	56	34	63	54	61	60	61	58	-3	59
24	Enterprise	85	61	56	67	72	107	56	53	54	51	58	+7	65
25	29er	48	43	50	40	31	81	56	57	48	41	57	+16	50
26	Fireball	46	68	72	74	84	55	47	88	63	47	56	+9	63
27	International Moth	20	19	18	32	24	11	20	29	37	43	56	+13	28
28	IRC											54	n/a	54
29	National 12	54	47	59	59	45	45	36	39	77	76	53	-23	53
30	Firefly	40	71	58	52	53	107	55	68	61	66	53	-13	62
31	GP14	73	43	142	86	64	62	47	90	52	60	52	-8	70
32	Salcombe Yawl		55	51	47	53	58	64	70	65	60	51	-9	57
33	National 18	28	23	32	30	31	19	33	24	26	14	51	+37	28
34	420	54	72	65	86	96	49	77	60	63	57	48	-9	66
35	RS100										43	47	+4	45
36	Streaker	31	26	24	45	54	60	53	58	27	46	46	+0	42
37	Laser 2000	42	52	59	34	43	34	49	49	79	74	44	-30	50
38	Lark	35	42	51	48	63	60	58	45	55	47	43	-4	49
39	Topper 4.2										45	43	-2	44
40	Dragon	42	47	26	35	36	36	24	23	27	32	43	+11	33
41	OK	35	36	40	75	27	22	43	33	35	32	42	+10	38
42	Finn	15	35	40	32	41	59	41	30	42	31	42	+11	37
43	Musto Skiff	11	16	21	29	28	47	43	65	50	74	41	-33	38
44	505	34	24	27	27	25	48	30	40	36	46	40	-6	34
45	Folkboat	16	19	27	37	9		9		8	19	40	+21	20
46	Blaze	15	13	18	43	53	48	44	25	28	54	39	-15	34
47	Comet	40	49	40	46	31	43	44	27	24	27	39	+12	37
48	RS700	18	33	48	34	28	50	51	44	34	34	38	+4	37
49	Laser SB3		14	32	33	52	58	57	37	68	41	36	-5	42
50	Sprint 15 Sport	43	46	37	43	39	43	29	40	39	24	35	+11	38
51	Albacore	70	28	30	20	74	33	33	40	53	45	34	-11	41
52	Miracle	35	27	54	44	39	31	31	48	57	43	34	-9	40
53	Supernova	33	47	58	53	38	30	31	30	36	38	34	-4	38
54	RS300	18	15	21	21	29	25	31	27	33	26	34	+8	25
55	Access											34	n/a	34
56	Osprey	39	26	51	34	28	35	28	50	43	33	33	+0	36
57	Formula 18	28	45	36	33	43	38	33	23	26	37	32	-5	34
58	RS500							30	38	18	14	32	+18	26
59	Quarter Tonner										35	31	-4	33
60	International 14	34	43	62	45	31	30	53	32	36	33	31	-2	39
61	British Moth	25	32	31	32	31	29	40	32	24	24	31	+7	30
62	Illusion					21	26	28	24	20	26	29	+3	24
63	RS Vareo		18	21	23	24	12	47	35	38	20	29	+9	26
64	Wayfarer	60	39	39	46	27	27	25	42	24	91	28	-63	40
65	Scow										37	28	-9	32
66	B14	34	23	43	30	23	20	26	27	27	13	28	+15	26
67	Sandhopper		18	20	16	23	14	23	27	29	32	27	-5	22
68	RC Laser	25	26	31	41	19	44	49	45	39	29	27	-2	34
69	Hurricane 5.9 SX						22	23	28	20	28	27	-1	24
70	Yachting World Dayboat	20	28	23	15	20	22	24	35	18	20	27	+7	22
71	Loch Long One Design			40			21		34	17		26	n/a	27
72	J109						26	17	32	29	27	25	-2	26
73	J80	10	14	15	9	25	19	18		25	15	25	+10	17
74	International Canoe	25	26	28	33	21	35	32	22	23	34	24	-10	27
75	Marblehead	34	28	24	21	22	21	22		15	17	24	+7	22
76	RS Elite					16	19	21	17	21	33	23	-10	21
77	RS600	62	47	41	35	21	25	33	18	22	27	23	-4	32
78	K6		18	23	21	20	19	23		19	19	23	+4	20
79	Sharpie				28	27	15	39	31	33	24	22	-2	27
80	Comet Trio	15	13	17	24	19	24	26	13	28	15	22	+7	19
81	Tasar	27	25	24	35	32	44	46	37	30	30	21	-9	31
82	K1											21	n/a	21
83	Devon Yawl	43	22	19	29	16	20	14	16	13	28	20	-8	21
84	Challenger	26	30	22	23	24	19	20	28	16	21	20	-1	22
85	Kestrel	27	24	21	19	20	23	31	26	18	26	19	-7	23
86	Hornet	50	47	36	34	21	30	22	32	16	18	19	+1	29
87	Norfolk Punt	24	22	24	21	24	20	18	18	16	16	19	+3	20
88	2.4m	13		23	20	21	21	15	13			19	n/a	18
89	Vortex	31	29	32	21	30	23	19	16	17	27	18	-9	23
90	Cherub	16	19	9	17	19	19	27	23	17	18	18	+0	18
91	Europe	23	15	14	12	21	28	23	20	19	14	18	+4	18
92	Lightning 368	18	24	23	20	27	24	19	21	16	25	17	-8	21
93	Ajax	14	19	14	24	16	24	17	26	17	23	17	-6	19
94	Shearwater	22	20	21	21	22	22	17	17	15	16	17	+1	19
95	Sigma 38	10	25		19	8	8	9	10	14	13	17	+4	13
96	Sonar						15		14	11	8	17	+9	13
97	Sigma 33									15	7	17	+10	13
98	J/24	43	40	43	40	41	25	27	30	20	21	16	-5	31
99	49er	39	40	26	31	36	33	26	33	24	18	16	-2	29
100	Sonata	34	19	24	27	19	27	14	17	16	16	16	+0	20
101	Spitfire		11	18	21	25	28	24	28	23	27	15	-12	22
102	Graduate	21		14	12	13	7	11	20	32	19	15	-4	16
103	Wanderer	29	24	21	19	18	12	19	15	19	19	15	-4	19
104	Laser 4000	70	51	51	41	57	41	41	28	24	16	15	-1	39
105	Snipe	31		16	13	19	15	17		17	14	15	+1	17
106	SigneT	15	16		14	15	8	15	9	12	10	15	+5	12
107	707	51	46	37	29	24	19	23	13	13	17	14	-3	26
108	MOCRA	18	24	15	12	15	8	18			7	14	+7	14
109	Redwing	16	16	15	13	19		14	12	13	13	13	+0	14
110	Sunbeam										13	13	+0	13
111	Tornado		16	21	34	32	26	22	9	15	11	13	+2	19
112	Thames A Rater	15	13	13	11	12	14	16	15	15	16	12	-4	13
113	Laser Vago						23	18	7	10	15	12	-3	14
114	Dart 16	14	24	18	21		11	11	14	14	12	12	+0	15
115	Solution							17	12	15	9	12	+3	13
116	Hunter Formula One			15	13	16	18	10	17	13	6	12	+6	13
117	Shadow					8		14	20	13	5	12	+7	12
118	International Six Metre	14	10		7		17					12	n/a	12
119	Tideway	15	21	14	13	16	10	29	12	13	15	11	-4	15
120	Javelin	13	17	14	17	15	14	14		15	9	11	+2	13
121	Heron	20	22	26	23	24	19	17	14	11	14	10	-4	18
122	Swallow	19	20	15		15	23	17	13	20	9	10	+1	16
123	Tempest	22	12	16	14	14	14		11	7	9	10	+1	12
124	Splash	39	22	41	57	58	14	16			6	10	+4	29
125	3000	16	15	12	19	15	11	16	13	16	12	9	-3	14
126	Laser Stratos	15	5	11	15	13				13	8	9	+1	11
127	Flying Dutchman	11	8	13	8	10	7	6	8	7	8	9	+1	8
128	Etchells	37	25	23	25	31	36		18	18	8	8	+0	22
129	Laser 5000	20	16	16	16	9	3	5	8	6	6	8	+2	10
130	18ft Skiff	14	18	11	9	14	14	9	10	6		8	n/a	11
131	Catapult	11	9	10	10	12	9	24	10	4	13	7	-6	10
132	A Class Catamaran								6		12	7	-5	8
133	Unicorn	9		11	5	9	9	11	10	10	10	7	-3	9
134	J/92 and J/92s	10		10			10	9			8	7	-1	9
135	Leader	6		8	6	6	6					7	n/a	6
136	Impala 28	7	8	17	13	8						7	n/a	10
137	Buzz	23	29	15	22	19	16	13	13	14	10	6	-4	16
138	Laser EPS							10	10	10	10	6	-4	9
139	J105	8	8		8	5	13	10		9	9	6	-3	8
140	Seascape 18											6	n/a	6
141	ISO	24	23	28	34	20	27	17	16	13	8	5	-3	19
142	Melges 24	25	21	25	24	22	9	13			8	4	-4	16
143	Laser Pico						44	66	44	54	38		n/a	49
144	Foxer	21		19	14	18	14		21	31	22		n/a	20
145	Rooster 8.1							19	17	34	19		n/a	22
146	Hobie 16			18	20	18		15			19		n/a	18
147	Byte	20	29	20	14	18	14	15	18	14	11		n/a	17
148	Contessa 32	22	21	23	20	17	16	16	15		11		n/a	17
149	Yeoman/Kinsman				35		20			28	10		n/a	23
150	Farr 45			7				8		9	9		n/a	8
151	Beneteau 40.7									9	9		n/a	9
152	Wineglass	6			12		16				9		n/a	10
153	Soling	12	11	15	14	14	9				9		n/a	12
154	1720		20	26	28	26	19			6	8		n/a	19
155	Beneteau First 31.7									6	7		n/a	6
156	Comet Versa									10	4		n/a	7
157	Laser 2	92	37	34	22	15	16	12	7	16			n/a	27
158	RS600FF								15	11			n/a	13
159	Formula 16					6	12			5			n/a	7
160	Comet Duo	12			8					5			n/a	8
161	470		7	3	14	14	19		18				n/a	12
162	405	23	17	16	16	11		11	8				n/a	14
163	X-35							8					n/a	8
164	Hobie Dragoon					10		7					n/a	8
165	Hurricane 5.9	35	50	36	29	50	21	6					n/a	32
166	Prima 38	12	15	8	10	13	9						n/a	11
167	Pacer	9			7	8	9						n/a	8
168	X-332	20	29	26	14	15	8						n/a	18
169	Boss	14	10	6	4		2						n/a	7
170	Martin 16				10	6							n/a	8
171	Farr 30		11	14	8	5							n/a	9
172	Hobie Tiger					2							n/a	2
173	Pandora	16	15	15	14								n/a	15
174	Swordfish		8	5	10								n/a	7
175	HOD35			8	7								n/a	7
176	Ker 11.3	6		5	5								n/a	5
177	59er				5								n/a	5
178	St Mawes One Design	9	15	16									n/a	13
179	Nacra			8									n/a	8
180	Formula 20	11		5									n/a	8
181	Bosun	18	21										n/a	19
222	Gull	15											n/a	15
223	Bull 7000	6											n/a	6
Totals (number of boats)		4710	4709	5055	5050	5158	5245	5127	5023	4936	5252	5494