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England Biodiversity Strategy IndicatorsTrends in butterfly populations in England 1990 to 2014

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Year	Widespread butterflies on farmland in England Unsmoothed	Widespread butterflies on farmland in England Smoothed	Widespread butterflies on farmland in England Smoothed index lower 95% condifence interval	Widespread butterflies on farmland in England Smoothed index upper 95% condifence interval	Widespread butterflies in woodland in England Unsmoothed	Widespread butterflies in woodland in England Smoothed	Widespread butterflies in woodland in England Smoothed index lower 95% condifence interval	Widespread butterflies in woodland in England Smoothed index upper 95% condifence interval
1990	100	110	100	119	100	99	86	112
1991	108	108	98	117	95	95	84	106
1992	128	105	97	114	124	91	82	101
1993	90	103	95	111	62	88	79	96