The standard unit for counting Guillemot is individual birds on the breeding ledges ie IND.

Year	Bass Rock	Craigleith	Lamb	Fidra	Eyebroughy	Inchkeith	Carr Craig	Inchcolm	Haystack	Inchmickery + Cow & Calves	Inchgarvie + Forth Bridge	Long Craig	May Isle	Total
1959		many dozens
1960		c240
1961
1962		325
1963		430
1964		245	10 b
1965		488	c40
1966		c 350	64pr
1967		c 650	87pr
1968		900	90pr
1969	500	620	97			8							9000
1970		650	135			6
1971		700	c200
1972		c 900	c200	2		8
1973		560	c340	5-8		1
1974		c 1000	c 400	10-20		6
1975		1100	500	20 s		2 off-shore
1976	2100+	1700	500	25 s		1 site
1977	c3000	1500	1000	20+		3-8
1978	2500-3000	1900+	1500	14 s		4
1979	2000+	1480	860	25		5
1980	2800	c1550	840	38		5 s
1981	x	x	1060	73		6							16300
1982	2250+	1800+	1500+	65s/ 116 b		8 s/ 12 b
1983	c2850	c1700	1540	113		13							22550
1984	4000	1350	c3000	159		31							19005
1985	2500+	x	c2200	142		x							18387
1986	x	2000	2750	176		35							19151
1987	2700	x	860+	79		49							17546
1988	x	1450	2400	131		28							16791
1989	x	1700	3600	145		44							18328
1990	x	c1500	2400	89		70							16778
1991	x	(107+)	2400	197		48	0	0	0	0	0	0	16834
1992	x	x	c 3250	245	0	52	0	0	0	0	0	0	17512
1993	x	1416	3300	139 s		44	0	0	0	0	0	0	17919
1994	x	1940	3200	304		59	0	0	0	0	0	0	19186
1995	x	2122	3170	289	0	48	0	0	0	0	0	0	25754
1996	3225	1877	3650	c258 b / 173 s	0	81	0	0	0	0	0	0	24468	33559
1997	4172	789	4400	c 268 b / 180 s	0	106	0	0	0	0	0	0	26711	36178
1998	x	x	3200	c320 b . 215 s	0	84	0	0	0	0	0	0	26963	30568+
1999	2422	1708	3760	376	0	48	0	0	0	0	0	0	21694	30008
2000	3570	2878	2523	643	0	73	0	0	0	0	0	0	27045	36732
2001	3650	3180	2180	682	0	81	0	0	0	0	0	0	28103	37876
2002	2960	1558	990	611	0	27	0	0	0	0	0	0	24767	30913
2003	2820	2119	1987	595	0	35	0	1	0	0	0	0	26722	34279
2004	2260	1780	1744	566	0	35	0	0	0	0	0	0	22970	29355
2005	1860	1452	1578	701	0	19	0	0	0	0	0	0	22667	28277
2006	3230	1672+	1745	458	0	27	0	0	0	0	0	0	21444	28576
2007	1120	1150	1395	588	0	16	0	1 close inshore	0	0	0	0	16770	21039
2008	c1600	c1550	c2900	403		28	0	1 on land	0	0	0	0	17157	23638
2009	c2550	c1800	c2200	524		49	0	0	0	0	0	0	16888 (14143 prs)	24011
2010	c1600	c1110	c2175	517		56	0	0	0	0	0	0	18096 (15029 pr)	c23,554
2011	c2000	1705	2040	332		133	0	0	0	0	0	0	15,691 (14,955 pr)	c21900
2012	c1600	c1650	x	x		225	0	0	0	0	0	0	16991	20,466+
2013	c1710	c1,620	2460	411		71	0	0	0	0	0	0	14764	21036
2014	c2050	c2910	c2800	c640		322	0	14	0	0	0	0	16602 (14248pr)	25338
2015	c3,230	c3,053	c3,100	632		243+	0	1	0	0	0	0	21,598 (15945pr)	c31,857
2016	c2,230	c2,568	3070	464		188	0	0	0	0	0	0	23038 (15,132pr)	c31,558
2017	c2450	c2205	c2900	c700		175	0	0	0	0	0	0	23,500 / (16468pr)	31930
2018	c2620	c2360	c1940	491		148	0	0	0	0	0	0	18705	26264
2019	c2510	c2837	c1970	c538		187	0	0	0	0	0	0	21493 / (c15974 pr)	29535
2020	x	x	x	x		x	0	0	0	0	0	0	23303 / (16865pr)	x
2021	c2050	2677	c1950	424		212	0	0	0	0	0	0	26134 / (18156pr)	33447
2022	2640	1817	1790	403		273	0	0	0	0	0	0	24545 / (c17052 pr)	31468
2023	1790	1560	1600	294		170	0	0	0	0	0	0	22113	27527
2024	760	783	270	87		74	0	0	0	0	0	0	15506 / (c13372 pr)	17480
2025	1390	1294	812	162		61	0	0	0	0	0	0	16011 (13332 pr)	19730

AOB / AON / AOS / AOT = Apparently Occupied Burrows / Nests / Sites / Territories; IND = Individual birds
s = sites; b = birds; x = breeding but not counted; + = minimum count; c = circa; 0 = none breeding;

blank = no information available