2. The annual precipitation at station X and the mean annual precipitation at 12 surrounding stations are given in the table below. a. Determine the consistency of the data of station X. b. In what year did the breakpoint (change in regime) occur? c. What is the unadjusted mean annual flow at station X? d. What is the adjusted mean annual flow according to recent regime conditions? e. Plot the double-mass curve of the adjusted data (25 points). Annual Precipitation (mm) Annual Precipitation (mm) Year Station X 12-Station Mean Year Station X 12-Station Mean 2000 447 325 1986 517 2001 396 442 1987 264 2002 385 364 1988 462 2003 308 299 1989 397 338 2004 319 429 1990 275 299 2005 352 430 1991 385 390 2006 429 455 1992 378 338 2007 275 338 1993 337 340 2008 330 377 1994 407 339 2009 253 364 1995 385 364 2010 407 442 1996 638 520 2011 374 429 1997 358 338 2012 330 455 1998 350 312 2013 308 438 1999 290 286 2014 297 325