Figure 5.3: Trends for the abundance of butterflies of the wider countryside in UK woodland, 1990 to 2022


Trends for the abundance of butterflies of the wider countryside in UK woodland, 1990 to 2022
Year	Unsmoothed index (1990 = 100)	Smoothed index	Smoothed index lower 95% confidence interval	Smoothed index upper 95% confidence interval
1990	100.00	93.78	82.61	104.96
1991	92.26	90.32	80.80	99.84
1992	110.66	86.88	78.63	95.13
1993	56.62	83.48	76.13	90.83
1994	61.52	80.22	73.44	87.00
1995	87.50	77.12	70.65	83.58
1996	87.30	74.13	67.82	80.43
1997	89.95	71.24	65.00	77.49
1998	58.21	68.49	62.26	74.72
1999	50.70	65.97	59.74	72.19
2000	52.36	63.72	57.49	69.94
2001	50.70	61.75	55.53	67.98
2002	57.68	60.05	53.83	66.27
2003	70.63	58.55	52.34	64.76
2004	70.79	57.19	50.99	63.38
2005	60.12	55.94	49.75	62.12
2006	58.34	54.80	48.62	60.99
2007	41.11	53.82	47.63	60.00
2008	38.28	53.01	46.82	59.21
2009	56.75	52.38	46.18	58.59
2010	63.68	51.89	45.67	58.10
2011	56.36	51.48	45.26	57.71
2012	32.36	51.18	44.95	57.41
2013	58.75	50.99	44.76	57.22
2014	53.21	50.87	44.64	57.10
2015	50.82	50.81	44.57	57.06
2016	36.64	50.80	44.49	57.11
2017	48.98	50.82	44.35	57.28
2018	69.18	50.82	44.02	57.61
2019	59.16	50.74	43.37	58.11
2020	57.54	50.59	42.31	58.86
2021	40.55	50.37	40.81	59.93
2022	45.60	50.15	38.92	61.37

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