Answering some of the key questions surrounding the legalization of marijuana.

Since they became the first states to legalize recreational marijuana in 2012, Washington and Colorado have been scrutinized as test cases around the country — particularly in California, where voters will decide on election day whether to follow suit.

Here are six questions that are being asked about legal weed, and the answers that are emerging:

How much cash are states hauling in?

Washington brought in $186 million in marijuana tax revenue in the fiscal year that ended June 30 — an amount that is on pace to jump by roughly 50 percent in fiscal 2017. The government collects a 37 percent excise tax on pot products in addition to regular sales taxes.

Colorado took in $135 million in 2015 and is on track to substantially surpass that figure this year. The state has two separate taxes that amount to a 25 percent charge on recreational marijuana sales, in addition to regular sales taxes.

Are more kids toking up?

Colorado saw a modest increase in teenage marijuana use after legalization, while Washington saw a very small increase, according to the federal government’s National Survey on Drug Use and Health. The increases, though, follow longer upward trends, making it difficult to say how the pot laws factored in.

The numbers are based on rolling two-year surveys of youths ages 12 to 17, which found increases in respondents who said they had used marijuana in the past month from 2011-12 to 2013-14. The Washington figure rose from 9.45 to 10.06 percent, while the Colorado figure jumped from 10.47 to 12.56 percent. At the same time, teen pot use slightly declined across the nation.

Has stoned driving made roads more dangerous?

The number of Washington drivers involved in fatal crashes who had marijuana in their systems has risen since legalization — but deadly crashes overall have gone up at almost the same pace, according to figures from the Washington Traffic Safety Commission. In 2012, 66 drivers in fatal crashes tested positive for THC, the psychoactive ingredient in marijuana, and in 2015 there were 98 such drivers.

In Colorado, fatalities involving drivers with traces of THC in their blood increased from 55 to 79 from 2013 to 2014, according to the Colorado Department of Public Safety.

However, it’s unknown how many of the drivers in fatal crashes were stoned at the time of the incident, as THC can stay in a person’s system for days. And the drivers may have been drunk or under the influence of another drug. Moreover, a report last year by the National Highway Traffic Safety Administration said the agency did not find that marijuana use was associated with an increased risk of getting in a crash.

Studies in states that have legalized pot have also shown increases in THC-related DUIs. But marijuana advocates say DUI statistics — as well as the crash data — may reveal only an increased focus on testing for marijuana.

Did legalization bring criminal justice?

A central argument for marijuana legalization has been that people of color are disproportionately subject to pot-related arrests, even though they don’t use the drug any more than whites. The early figures out of Colorado offer a mixed bag as to whether legalization has changed that.

In the first two years of legalization, marijuana arrests fell 46 percent as many people complied with the new regulations, according to the Colorado Department of Public Safety. However, while the number of arrests decreased 51 percent for whites, they dropped only 33 percent for Latinos and 25 percent for African Americans. The potrelated arrest rate for African Americans remained nearly triple that of whites.

Juvenile marijuana arrests increased by 5 percent overall, but went up 29 percent for Latino youths and 58 percent for black youths. The number of white juveniles arrested fell 8 percent.

What about the price of pot?

There is strong evidence that increasing competition after legalization and the spread of retail stores has pushed prices downward.

In Washington, a gram of dry flower, or bud, now averages about $9 — the cheap stuff can go as low as $6 — compared with a year ago when it averaged $10 to $12 before taxes, according to BOTEC Analysis Corp., which tracks data for the state.

In Colorado, the cost of a pound of pot fell from a high of $2,600 last October to $1,600 in August, according to the online marijuana distribution platform Tradiv.

Have residents of Colorado and Washington changed their minds?

Four years after 55 percent of Colorado voters supported recreational pot, support seems to be steady or growing, with only 36 percent of the state’s voters favoring a repeal, according to a recent poll. The Public Policy Polling survey, commissioned by a pro-legalization group, found a slim majority (51 percent) saying they would not repeal it, with 13 percent unsure. A solid 61 percent of respondents said legalization’s impact had been positive, with 19 percent seeing negative effects. Fourteen percent perceived no impact, and 6 percent weren’t sure.

The same trend holds in Washington, where 56 percent of voters backed legalization in 2012. A 2014 survey conducted by the Public Health Institute in Emeryville found that 5 percent of those who voted to legalize would change their vote, while 14 percent of those who opposed legalization would go the other way.