1980DVRPC Region0.6560.656 1981DVRPC Region0.6220.642 1982DVRPC Region0.5920.626 1983DVRPC Region0.5710.607 1984DVRPC Region0.5560.592 1985DVRPC Region0.5590.584 1986DVRPC Region0.5190.568 1987DVRPC Region0.4910.555 1988DVRPC Region0.5320.551 1989DVRPC Region0.490.546 1990DVRPC Region0.4680.541 1991DVRPC Region0.4340.535 1992DVRPC Region0.4170.528 1993DVRPC Region0.4240.521 1994DVRPC Region0.3820.513 1995DVRPC Region0.3590.505 1996DVRPC Region0.360.497 1997DVRPC Region0.3480.489 1998DVRPC Region0.3660.482 1999DVRPC Region0.3380.474 2000DVRPC Region0.3920.47 2001DVRPC Region0.3490.465 2002DVRPC Region0.380.462 2003DVRPC Region0.4430.461 2004DVRPC Region0.470.461 2005DVRPC Region0.4960.463 2006DVRPC Region0.550.466 2007DVRPC Region0.5260.467 2008DVRPC Region0.5540.469 2009DVRPC Region0.550.47 2010DVRPC Region0.5280.471 2011DVRPC Region0.5560.472 2012DVRPC Region0.6020.474 2013DVRPC Region0.6170.476 2014DVRPC Region0.6930.481 2015DVRPC Region0.6510.485 2016DVRPC Region0.6460.488 2017DVRPC Region0.6350.491 2018DVRPC Region0.6360.494 2019DVRPC Region0.6890.499 2020DVRPC Region0.6770.503 2021DVRPC Region0.8530.522 2022DVRPC Region0.6170.524