Year	Growth Rate Previous Period
1971-01-01	20.64281371945350
1972-01-01	18.60377020250710
1973-01-01	21.15198115607990
1974-01-01	20.79096521380760
1975-01-01	23.61135455036030
1976-01-01	25.00139093173360
1977-01-01	25.47960420242080
1978-01-01	25.66187172524360
1979-01-01	36.27148255989420
1980-01-01	32.59789140050550
1981-01-01	19.45628205983050
1982-01-01	16.68730441676030
1983-01-01	24.89637236029080
1984-01-01	16.89093296760430
1985-01-01	37.12578747112810
1986-01-01	25.88865897786590
1987-01-01	32.78772383154120
1988-01-01	22.23244222325790
1989-01-01	25.50932417406000
1990-01-01	24.14804341023010
1991-01-01	14.16144328607270
1992-01-01	14.62482841599700
1993-01-01	24.15531259106430
1994-01-01	23.72649932319270
1995-01-01	16.63658731398730
1996-01-01	11.77785619575740
1997-01-01	15.57243102361810
1998-01-01	13.70991997109980
1999-01-01	14.86500935978670
2000-01-01	13.31691051787960
2001-01-01	10.47573952233110
2002-01-01	9.72495549289334
2003-01-01	12.20310059147130
2004-01-01	11.63809422770600
2005-01-01	13.71340339174310
2006-01-01	12.88702888589580
2007-01-01	8.19910953345578
2008-01-01	5.58669330954176
2009-01-01	9.49721649742500
2010-01-01	9.27954504807661
2011-01-01	4.04982674124740
2012-01-01	4.53056284245696
2013-01-01	8.52924222134707